#004D40

Charcoal

#004D40Charcoal

Luminance

0.057

Category

Cyan

Type

Dark

Best On

#FFFFFF

Color Codes

All color formats for your project

HEX

HEX
#004D40
No #
004D40

RGB

RGB
rgb(0, 77, 64)
Values
R:0 G:77 B:64

HSL

HSL
hsl(170, 100%, 15%)
Values
H:170° S:100% L:15%

HSV / HSB

HSV
hsv(170, 100%, 30%)
Values
H:170° S:100% V:30%

CMYK

CMYK
cmyk(100%, 0%, 17%, 70%)
Values
C:100 M:0 Y:17 K:70

LAB

LAB
lab(29, -25, 2)
Values
L:29 a:-25 b:2

OKLCH

OKLCH
oklch(37.6% 0.070 176.4)
Values
L:37.6% C:0.070 H:176.4°

Code Formats

CSS
color: #004D40;
Swift
UIColor(red: 0.000, green: 0.302, blue: 0.251, alpha: 1.0)
Kotlin
Color(0xFF004D40)
Flutter
Color(0xFF004D40)
Android
#FF004D40

Contrast Analysis

WCAG compliance with grayscale colors

On White

9.83:1

AAA

On Black

2.14:1

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%

6.1

AA
Aa

90%

7.8

AAA
Aa

100%

9.8

AAA

Best Grayscale Contrast

#FFFFFF with ratio 9.83:1

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, #00B395 0%, #00806A 100%)
OKLCH
linear-gradient(90deg, oklch(68.5% 0.129 175.0) 0%, oklch(53.6% 0.101 175.0) 100%)
Stops
0%
100%

Vibrant

135°
CSS
linear-gradient(135deg, #00806A 0%, #00CCAA 100%)
OKLCH
linear-gradient(135deg, oklch(53.6% 0.101 175.0) 0%, oklch(75.5% 0.142 174.9) 100%)
Stops
0%
100%

Complementary

90°
CSS
linear-gradient(90deg, #004D40 0%, #4D000D 100%)
OKLCH
linear-gradient(90deg, oklch(37.6% 0.070 176.4) 0%, oklch(26.6% 0.107 20.4) 100%)
Stops
0%
100%

Analogous

90°
CSS
linear-gradient(90deg, #004D1A 0%, #004D40 50%, #00334D 100%)
OKLCH
linear-gradient(90deg, oklch(36.6% 0.106 147.9) 0%, oklch(37.6% 0.070 176.4) 50%, oklch(30.5% 0.068 238.3) 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, #004D40 0%, #09342D 100%)
OKLCH
linear-gradient(180deg, oklch(37.6% 0.070 176.4) 0%, oklch(29.4% 0.047 179.6) 100%)
Stops
0%
100%

Radial Glow

Radial
CSS
radial-gradient(circle, #009980 0%, #009980 100%)
OKLCH
radial-gradient(circle, oklch(61.0% 0.114 175.6) 0%, oklch(61.0% 0.114 175.6) 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