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Pixeliro

#3730A3

Cobalt

#3730A3Cobalt

Luminance

0.056

Category

Blue

Type

Dark

Best On

#FFFFFF

Color Codes

All color formats for your project

HEX

HEX
#3730A3
No #
3730A3

RGB

RGB
rgb(55, 48, 163)
Values
R:55 G:48 B:163

HSL

HSL
hsl(244, 55%, 41%)
Values
H:244° S:55% L:41%

HSV / HSB

HSV
hsv(244, 71%, 64%)
Values
H:244° S:71% V:64%

CMYK

CMYK
cmyk(66%, 71%, 0%, 36%)
Values
C:66 M:71 Y:0 K:36

LAB

LAB
lab(28, 39, -61)
Values
L:28 a:39 b:-61

OKLCH

OKLCH
oklch(39.8% 0.177 277.4)
Values
L:39.8% C:0.177 H:277.4°

Code Formats

CSS
color: #3730A3;
Swift
UIColor(red: 0.216, green: 0.188, blue: 0.639, alpha: 1.0)
Kotlin
Color(0xFF3730A3)
Flutter
Color(0xFF3730A3)
Android
#FF3730A3

Contrast Analysis

WCAG compliance with grayscale colors

On White

9.93:1

AAA

On Black

2.11:1

Fail

Grayscale Contrast

Aa

0%

2.1

Fail
Aa

10%

1.8

Fail
Aa

20%

1.3

Fail
Aa

30%

1.2

Fail
Aa

40%

1.7

Fail
Aa

50%

2.5

Fail
Aa

60%

3.5

AA-large
Aa

70%

4.7

AA
Aa

80%

6.2

AA
Aa

90%

7.9

AAA
Aa

100%

9.9

AAA

Best Grayscale Contrast

#FFFFFF with ratio 9.93:1

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, #6C65D2 0%, #211D63 100%)
OKLCH
linear-gradient(90deg, oklch(56.8% 0.163 282.8) 0%, oklch(28.7% 0.119 278.3) 100%)
Stops
0%
100%

Vibrant

135°
CSS
linear-gradient(135deg, #362BDA 0%, #1F14B8 100%)
OKLCH
linear-gradient(135deg, oklch(44.9% 0.248 272.8) 0%, oklch(37.5% 0.231 269.6) 100%)
Stops
0%
100%

Complementary

90°
CSS
linear-gradient(90deg, #3730A3 0%, #9AA22F 100%)
OKLCH
linear-gradient(90deg, oklch(39.8% 0.177 277.4) 0%, oklch(68.4% 0.135 113.4) 100%)
Stops
0%
100%

Analogous

90°
CSS
linear-gradient(90deg, #2F61A2 0%, #3730A3 50%, #702FA2 100%)
OKLCH
linear-gradient(90deg, oklch(49.1% 0.118 256.0) 0%, oklch(39.8% 0.177 277.4) 50%, oklch(45.4% 0.178 306.4) 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, #372FA2 0%, #181726 100%)
OKLCH
linear-gradient(180deg, oklch(39.6% 0.177 277.7) 0%, oklch(21.3% 0.029 286.7) 100%)
Stops
0%
100%

Radial Glow

Radial
CSS
radial-gradient(circle, #5951CD 0%, #282277 100%)
OKLCH
radial-gradient(circle, oklch(51.5% 0.185 280.6) 0%, oklch(32.1% 0.139 278.3) 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