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Pixeliro

#374151

Charcoal

#374151Charcoal

Luminance

0.052

Category

Blue

Type

Dark

Best On

#FFFFFF

Color Codes

All color formats for your project

HEX

HEX
#374151
No #
374151

RGB

RGB
rgb(55, 65, 81)
Values
R:55 G:65 B:81

HSL

HSL
hsl(217, 19%, 27%)
Values
H:217° S:19% L:27%

HSV / HSB

HSV
hsv(217, 32%, 32%)
Values
H:217° S:32% V:32%

CMYK

CMYK
cmyk(32%, 20%, 0%, 68%)
Values
C:32 M:20 Y:0 K:68

LAB

LAB
lab(27, 0, -11)
Values
L:27 a:0 b:-11

OKLCH

OKLCH
oklch(37.3% 0.031 259.7)
Values
L:37.3% C:0.031 H:259.7°

Code Formats

CSS
color: #374151;
Swift
UIColor(red: 0.216, green: 0.255, blue: 0.318, alpha: 1.0)
Kotlin
Color(0xFF374151)
Flutter
Color(0xFF374151)
Android
#FF374151

Contrast Analysis

WCAG compliance with grayscale colors

On White

10.31:1

AAA

On Black

2.04:1

Fail

Grayscale Contrast

Aa

0%

2.0

Fail
Aa

10%

1.7

Fail
Aa

20%

1.2

Fail
Aa

30%

1.2

Fail
Aa

40%

1.8

Fail
Aa

50%

2.6

Fail
Aa

60%

3.6

AA-large
Aa

70%

4.9

AA
Aa

80%

6.4

AA
Aa

90%

8.2

AAA
Aa

100%

10.3

AAA

Best Grayscale Contrast

#FFFFFF with ratio 10.31:1

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, #61738F 0%, #343D4C 100%)
OKLCH
linear-gradient(90deg, oklch(55.2% 0.049 259.1) 0%, oklch(35.8% 0.029 260.6) 100%)
Stops
0%
100%

Vibrant

135°
CSS
linear-gradient(135deg, #3E577E 0%, #395C93 100%)
OKLCH
linear-gradient(135deg, oklch(45.4% 0.071 259.0) 0%, oklch(47.5% 0.098 259.1) 100%)
Stops
0%
100%

Complementary

90°
CSS
linear-gradient(90deg, #374151 0%, #524838 100%)
OKLCH
linear-gradient(90deg, oklch(37.3% 0.031 259.7) 0%, oklch(40.7% 0.029 79.4) 100%)
Stops
0%
100%

Analogous

90°
CSS
linear-gradient(90deg, #384F52 0%, #374151 50%, #3B3852 100%)
OKLCH
linear-gradient(90deg, oklch(41.0% 0.029 206.2) 0%, oklch(37.3% 0.031 259.7) 50%, oklch(35.5% 0.045 289.2) 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, #384252 0%, #181D25 100%)
OKLCH
linear-gradient(180deg, oklch(37.7% 0.031 259.7) 0%, oklch(22.9% 0.017 259.7) 100%)
Stops
0%
100%

Radial Glow

Radial
CSS
radial-gradient(circle, #57667F 0%, #3E495B 100%)
OKLCH
radial-gradient(circle, oklch(50.7% 0.044 260.6) 0%, oklch(40.3% 0.034 260.2) 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