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Pixeliro

#3F51B5

Steel Blue

#3F51B5Steel Blue

Luminance

0.103

Category

Blue

Type

Dark

Best On

#FFFFFF

Color Codes

All color formats for your project

HEX

HEX
#3F51B5
No #
3F51B5

RGB

RGB
rgb(63, 81, 181)
Values
R:63 G:81 B:181

HSL

HSL
hsl(231, 48%, 48%)
Values
H:231° S:48% L:48%

HSV / HSB

HSV
hsv(231, 65%, 71%)
Values
H:231° S:65% V:71%

CMYK

CMYK
cmyk(65%, 55%, 0%, 29%)
Values
C:65 M:55 Y:0 K:29

LAB

LAB
lab(38, 26, -55)
Values
L:38 a:26 b:-55

OKLCH

OKLCH
oklch(47.8% 0.159 271.4)
Values
L:47.8% C:0.159 H:271.4°

Code Formats

CSS
color: #3F51B5;
Swift
UIColor(red: 0.247, green: 0.318, blue: 0.710, alpha: 1.0)
Kotlin
Color(0xFF3F51B5)
Flutter
Color(0xFF3F51B5)
Android
#FF3F51B5

Contrast Analysis

WCAG compliance with grayscale colors

On White

6.87:1

AA

On Black

3.06:1

AA-large

Grayscale Contrast

Aa

0%

3.1

AA-large
Aa

10%

2.5

Fail
Aa

20%

1.8

Fail
Aa

30%

1.2

Fail
Aa

40%

1.2

Fail
Aa

50%

1.7

Fail
Aa

60%

2.4

Fail
Aa

70%

3.3

AA-large
Aa

80%

4.3

AA-large
Aa

90%

5.5

AA
Aa

100%

6.9

AA

Best Grayscale Contrast

#FFFFFF with ratio 6.87:1

Aa

Color Harmonies

Harmonious color combinations

complementary

Two colors opposite on the color wheel (180°)

split-complementary

Base color + two colors adjacent to its complement

triadic

Three colors evenly spaced (120° apart)

tetradic

Four colors evenly spaced (90° apart)

analogous

Three colors adjacent on the color wheel (30° apart)

Color Variations

Tints, shades, tones, and full scale

Color Scale (50-900)

50

100

200

300

400

500

600

700

800

900

Tints (Lighter)

Shades (Darker)

Tones (Desaturated)

Gradients (OKLCH)

Primary

90°
CSS
linear-gradient(90deg, #8692D5 0%, #252F6A 100%)
OKLCH
linear-gradient(90deg, oklch(67.7% 0.100 275.6) 0%, oklch(33.2% 0.103 272.3) 100%)
Stops
0%
100%

Vibrant

135°
CSS
linear-gradient(135deg, #5065D7 0%, #1C32B0 100%)
OKLCH
linear-gradient(135deg, oklch(55.2% 0.175 271.6) 0%, oklch(40.0% 0.198 267.4) 100%)
Stops
0%
100%

Complementary

90°
CSS
linear-gradient(90deg, #3F51B5 0%, #B5A440 100%)
OKLCH
linear-gradient(90deg, oklch(47.8% 0.159 271.4) 0%, oklch(71.4% 0.121 99.6) 100%)
Stops
0%
100%

Analogous

90°
CSS
linear-gradient(90deg, #408CB5 0%, #3F51B5 50%, #6940B5 100%)
OKLCH
linear-gradient(90deg, oklch(61.0% 0.097 235.1) 0%, oklch(47.8% 0.159 271.4) 50%, oklch(48.3% 0.176 295.1) 100%)
Stops
0%
50%
100%

Sunset

90°
CSS
linear-gradient(90deg, #F6CE55 0%, #EE6C2B 50%, #E6193C 100%)
OKLCH
linear-gradient(90deg, oklch(86.4% 0.144 90.6) 0%, oklch(68.0% 0.177 43.8) 50%, oklch(59.1% 0.228 21.2) 100%)
Stops
0%
50%
100%

Ocean

135°
CSS
linear-gradient(135deg, #19A1E6 0%, #22C3B6 50%, #47D1A3 100%)
OKLCH
linear-gradient(135deg, oklch(67.5% 0.146 238.9) 0%, oklch(73.8% 0.124 186.2) 50%, oklch(77.5% 0.136 166.9) 100%)
Stops
0%
50%
100%

Dark Mode

180°
CSS
linear-gradient(180deg, #4051B5 0%, #181A25 100%)
OKLCH
linear-gradient(180deg, oklch(47.9% 0.159 271.8) 0%, oklch(22.1% 0.022 276.5) 100%)
Stops
0%
100%

Radial Glow

Radial
CSS
radial-gradient(circle, #7381CE 0%, #2C387D 100%)
OKLCH
radial-gradient(circle, oklch(62.5% 0.117 274.7) 0%, oklch(37.2% 0.117 272.0) 100%)
Stops
0%
100%

💡 About OKLCH Gradients

OKLCH (Oklch Color Space) provides perceptually uniform gradients with better color transitions than traditional RGB/HSL gradients. The format is oklch(L% C H) where L = Lightness (0-100%), C = Chroma (0-0.4), H = Hue (0-360°).

Generate Full Palette

Create a complete brand palette from this color with primary, secondary, accent, and neutral scales.

View Palette