#283C57#283C57

#283C57 is a dark, muted cyan. Relative luminance 0.044; OKLCH L 35.2% C 0.054 H 256.2°. Best body text is #FFFFFF at 11.20:1 contrast (WCAG AA passes).

Color values

HEX	#283C57
RGB	rgb(40, 60, 87)
HSL	hsl(214, 37%, 25%)
HSV	hsv(214, 54%, 34%)
CMYK	cmyk(54%, 31%, 0%, 65.9%)
CIE-LAB	lab(24.86, 0.79, -18.68)
CIE-LCH	lch(24.86, 18.70, 272.43°)
OKLab	oklab(35.23% -0.0129 -0.0524)
OKLCH	oklch(35.23% 0.054 256.2)
XYZ	xyz(4.2106, 4.3707, 9.6367)
Luminance	0.0437 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283C57 #574328

analogous

#285457 #283C57 #2B2857

triadic

#283C57 #57283C #3C5728

tetradic

#283C57 #572854 #574328 #28572B

square

#283C57 #572854 #574328 #28572B

split-complementary

#283C57 #572B28 #545728

monochromatic

#0A0E15 #151F2D #283C57 #3B5981 #4F76AB

Accessibility & contrast

On white

11.20

#283C57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#283C57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283C57

11.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283C57	#FFFFFF	#000000	##FFFFFF
##283C57	1.00	11.20	1.87	11.20
#FFFFFF	11.20	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#313D58

Deuteranopia (green-blind)

#2C3956

Tritanopia (blue-blind)

#124245

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #283c57;
/* rgb */ color: rgb(40, 60, 87);
/* oklch */ color: oklch(35.2% 0.054 256.2);

Tailwind

colors: {
  custom: {
    50: '#657186',
    500: '#283c57',
    950: '#000000',
  },
}

SCSS

$custom: #283c57;
$custom-light: #657186;
$custom-dark: #000000;

JSON

{
  "hex": "#283c57",
  "rgb": {
    "r": 40,
    "g": 60,
    "b": 87
  },
  "hsl": {
    "h": 214.468,
    "s": 37.008,
    "l": 24.902
  },
  "oklch": {
    "l": 0.35227,
    "c": 0.05393,
    "h": 256.2
  },
  "luminance": 0.04371
}

Semantic roles & 50–950 ramp

primary

#283C57

secondary

#8A7251

accent

#9C5BCD

background

#F6F6F8

surface

#EBECEF

border

#C6C7CA

text

#06070B

muted

#7A7A7C

Preview Lab

Preview with #283C57

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

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