#10243D#10243D

#10243D is a dark, muted cyan. Relative luminance 0.017; OKLCH L 25.8% C 0.054 H 255.0°. Best body text is #FFFFFF at 15.65:1 contrast (WCAG AA passes).

Color values

HEX	#10243D
RGB	rgb(16, 36, 61)
HSL	hsl(213, 58%, 15%)
HSV	hsv(213, 74%, 24%)
CMYK	cmyk(73.8%, 41%, 0%, 76.1%)
CIE-LAB	lab(13.88, 1.63, -18.42)
CIE-LCH	lch(13.88, 18.49, 275.06°)
OKLab	oklab(25.78% -0.014 -0.0522)
OKLCH	oklch(25.78% 0.054 255)
XYZ	xyz(1.6866, 1.7087, 4.6549)
Luminance	0.0171 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10243D #3D2910

analogous

#103B3D #10243D #12103D

triadic

#10243D #3D1024 #243D10

tetradic

#10243D #3D103B #3D2910 #103D12

square

#10243D #3D103B #3D2910 #103D12

split-complementary

#10243D #3D1210 #3B3D10

monochromatic

#060E18 #060E18 #10243D #1D416D #295D9E

Accessibility & contrast

On white

15.65

#10243D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#10243D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10243D

15.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10243D	#FFFFFF	#000000	##FFFFFF
##10243D	1.00	15.65	1.34	15.65
#FFFFFF	15.65	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#19263E

Deuteranopia (green-blind)

#13213C

Tritanopia (blue-blind)

#002A2D

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #10243d;
/* rgb */ color: rgb(16, 36, 61);
/* oklch */ color: oklch(25.8% 0.054 255.0);

Tailwind

colors: {
  custom: {
    50: '#545e72',
    500: '#10243d',
    950: '#000000',
  },
}

SCSS

$custom: #10243d;
$custom-light: #545e72;
$custom-dark: #000000;

JSON

{
  "hex": "#10243d",
  "rgb": {
    "r": 16,
    "g": 36,
    "b": 61
  },
  "hsl": {
    "h": 213.333,
    "s": 58.442,
    "l": 15.098
  },
  "oklch": {
    "l": 0.25783,
    "c": 0.0541,
    "h": 255
  },
  "luminance": 0.01709
}

Semantic roles & 50–950 ramp

primary

#10243D

secondary

#775832

accent

#9D46E2

background

#F5F5F6

surface

#E8E9EC

border

#C4C5C7

text

#030408

muted

#78797B

Preview Lab

Preview with #10243D

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

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