#10283D#10283D

#10283D is a dark, muted cyan. Relative luminance 0.020; OKLCH L 26.9% C 0.050 H 247.3°. Best body text is #FFFFFF at 15.08:1 contrast (WCAG AA passes).

Color values

HEX	#10283D
RGB	rgb(16, 40, 61)
HSL	hsl(208, 58%, 15%)
HSV	hsv(208, 74%, 24%)
CMYK	cmyk(73.8%, 34.4%, 0%, 76.1%)
CIE-LAB	lab(15.30, -1.28, -16.18)
CIE-LCH	lch(15.30, 16.23, 265.47°)
OKLab	oklab(26.9% -0.0191 -0.0457)
OKLCH	oklch(26.9% 0.05 247.3)
XYZ	xyz(1.8145, 1.9645, 4.6975)
Luminance	0.0197 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10283D #3D2510

analogous

#103D3C #10283D #10113D

triadic

#10283D #3D1028 #283D10

tetradic

#10283D #3C103D #3D2510 #113D10

square

#10283D #3C103D #3D2510 #113D10

split-complementary

#10283D #3D1011 #3D3C10

monochromatic

#061018 #061018 #10283D #1D486D #29689E

Accessibility & contrast

On white

15.08

#10283D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#10283D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10283D

15.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10283D	#FFFFFF	#000000	##FFFFFF
##10283D	1.00	15.08	1.39	15.08
#FFFFFF	15.08	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F293E

Deuteranopia (green-blind)

#19243D

Tritanopia (blue-blind)

#002D2F

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #10283d;
/* rgb */ color: rgb(16, 40, 61);
/* oklch */ color: oklch(26.9% 0.050 247.3);

Tailwind

colors: {
  custom: {
    50: '#546172',
    500: '#10283d',
    950: '#000000',
  },
}

SCSS

$custom: #10283d;
$custom-light: #546172;
$custom-dark: #000000;

JSON

{
  "hex": "#10283d",
  "rgb": {
    "r": 16,
    "g": 40,
    "b": 61
  },
  "hsl": {
    "h": 208,
    "s": 58.442,
    "l": 15.098
  },
  "oklch": {
    "l": 0.26899,
    "c": 0.04951,
    "h": 247.3
  },
  "luminance": 0.01965
}

Semantic roles & 50–950 ramp

primary

#10283D

secondary

#775232

accent

#8F46E2

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030508

muted

#78797B

Preview Lab

Preview with #10283D

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

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