#283A41#283A41

#283A41 is a dark, muted cyan. Relative luminance 0.039; OKLCH L 33.6% C 0.026 H 224.0°. Best body text is #FFFFFF at 11.85:1 contrast (WCAG AA passes).

Color values

HEX	#283A41
RGB	rgb(40, 58, 65)
HSL	hsl(197, 24%, 21%)
HSV	hsv(197, 38%, 25%)
CMYK	cmyk(38.5%, 10.8%, 0%, 74.5%)
CIE-LAB	lab(23.20, -5.16, -6.65)
CIE-LCH	lch(23.20, 8.42, 232.23°)
OKLab	oklab(33.59% -0.0189 -0.0182)
OKLCH	oklch(33.59% 0.026 224)
XYZ	xyz(3.3420, 3.8587, 5.5687)
Luminance	0.0386 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283A41 #412F28

analogous

#28413B #283A41 #282D41

triadic

#283A41 #41283A #3A4128

tetradic

#283A41 #3B2841 #412F28 #2D4128

square

#283A41 #3B2841 #412F28 #2D4128

split-complementary

#283A41 #41282D #413B28

monochromatic

#0C1113 #11181B #283A41 #3F5C67 #577E8D

Accessibility & contrast

On white

11.85

#283A41 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#283A41 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283A41

11.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283A41	#FFFFFF	#000000	##FFFFFF
##283A41	1.00	11.85	1.77	11.85
#FFFFFF	11.85	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#363941

Deuteranopia (green-blind)

#323641

Tritanopia (blue-blind)

#1F3C3C

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #283a41;
/* rgb */ color: rgb(40, 58, 65);
/* oklch */ color: oklch(33.6% 0.026 224.0);

Tailwind

colors: {
  custom: {
    50: '#637075',
    500: '#283a41',
    950: '#000000',
  },
}

SCSS

$custom: #283a41;
$custom-light: #637075;
$custom-dark: #000000;

JSON

{
  "hex": "#283a41",
  "rgb": {
    "r": 40,
    "g": 58,
    "b": 65
  },
  "hsl": {
    "h": 196.8,
    "s": 23.81,
    "l": 20.588
  },
  "oklch": {
    "l": 0.33589,
    "c": 0.02625,
    "h": 224
  },
  "luminance": 0.03859
}

Semantic roles & 50–950 ramp

primary

#283A41

secondary

#735B52

accent

#8068C0

background

#F5F6F7

surface

#EAECED

border

#C6C7C8

text

#050708

muted

#797A7B

Preview Lab

Preview with #283A41

Body copy rendered with the generated semantic roles for this colour.

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