#283F44#283F44

#283F44 is a dark, muted cyan. Relative luminance 0.044; OKLCH L 35.1% C 0.030 H 212.8°. Best body text is #FFFFFF at 11.14:1 contrast (WCAG AA passes).

Color values

HEX	#283F44
RGB	rgb(40, 63, 68)
HSL	hsl(191, 26%, 21%)
HSV	hsv(191, 41%, 27%)
CMYK	cmyk(41.2%, 7.4%, 0%, 73.3%)
CIE-LAB	lab(25.02, -7.44, -5.91)
CIE-LCH	lch(25.02, 9.50, 218.46°)
OKLab	oklab(35.08% -0.0252 -0.0162)
OKLCH	oklch(35.08% 0.03 212.8)
XYZ	xyz(3.6956, 4.4233, 6.1268)
Luminance	0.0442 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283F44 #442D28

analogous

#28443B #283F44 #283144

triadic

#283F44 #44283F #3F4428

tetradic

#283F44 #3B2844 #442D28 #314428

square

#283F44 #3B2844 #442D28 #314428

split-complementary

#283F44 #442831 #443B28

monochromatic

#0B1213 #111B1D #283F44 #3F636B #558691

Accessibility & contrast

On white

11.14

#283F44 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#283F44 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283F44

11.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283F44	#FFFFFF	#000000	##FFFFFF
##283F44	1.00	11.14	1.88	11.14
#FFFFFF	11.14	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B3D44

Deuteranopia (green-blind)

#363A44

Tritanopia (blue-blind)

#1D4140

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #283f44;
/* rgb */ color: rgb(40, 63, 68);
/* oklch */ color: oklch(35.1% 0.030 212.8);

Tailwind

colors: {
  custom: {
    50: '#637477',
    500: '#283f44',
    950: '#000000',
  },
}

SCSS

$custom: #283f44;
$custom-light: #637477;
$custom-dark: #000000;

JSON

{
  "hex": "#283f44",
  "rgb": {
    "r": 40,
    "g": 63,
    "b": 68
  },
  "hsl": {
    "h": 190.714,
    "s": 25.926,
    "l": 21.176
  },
  "oklch": {
    "l": 0.35078,
    "c": 0.02992,
    "h": 212.8
  },
  "luminance": 0.04423
}

Semantic roles & 50–950 ramp

primary

#283F44

secondary

#765852

accent

#7665C2

background

#F6F7F7

surface

#EBEDED

border

#C6C8C8

text

#050808

muted

#7A7B7B

Preview Lab

Preview with #283F44

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

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