#103E4B#103E4B

#103E4B is a dark, muted cyan. Relative luminance 0.041; OKLCH L 34.0% C 0.053 H 220.6°. Best body text is #FFFFFF at 11.59:1 contrast (WCAG AA passes).

Color values

HEX	#103E4B
RGB	rgb(16, 62, 75)
HSL	hsl(193, 65%, 18%)
HSV	hsv(193, 79%, 29%)
CMYK	cmyk(78.7%, 17.3%, 0%, 70.6%)
CIE-LAB	lab(23.88, -10.34, -12.38)
CIE-LCH	lch(23.88, 16.13, 230.13°)
OKLab	oklab(33.96% -0.0404 -0.0346)
OKLCH	oklch(33.96% 0.053 220.6)
XYZ	xyz(3.2058, 4.0630, 7.2705)
Luminance	0.0406 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103E4B #4B1D10

analogous

#104B3A #103E4B #10214B

triadic

#103E4B #4B103E #3E4B10

tetradic

#103E4B #3A104B #4B1D10 #214B10

square

#103E4B #3A104B #4B1D10 #214B10

split-complementary

#103E4B #4B1021 #4B3A10

monochromatic

#051519 #051519 #103E4B #1B687D #2691B0

Accessibility & contrast

On white

11.59

#103E4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#103E4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103E4B

11.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103E4B	#FFFFFF	#000000	##FFFFFF
##103E4B	1.00	11.59	1.81	11.59
#FFFFFF	11.59	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#363C4C

Deuteranopia (green-blind)

#2E364B

Tritanopia (blue-blind)

#004242

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #103e4b;
/* rgb */ color: rgb(16, 62, 75);
/* oklch */ color: oklch(34.0% 0.053 220.6);

Tailwind

colors: {
  custom: {
    50: '#58737d',
    500: '#103e4b',
    950: '#000000',
  },
}

SCSS

$custom: #103e4b;
$custom-light: #58737d;
$custom-dark: #000000;

JSON

{
  "hex": "#103e4b",
  "rgb": {
    "r": 16,
    "g": 62,
    "b": 75
  },
  "hsl": {
    "h": 193.22,
    "s": 64.835,
    "l": 17.843
  },
  "oklch": {
    "l": 0.33959,
    "c": 0.05317,
    "h": 220.6
  },
  "luminance": 0.04063
}

Semantic roles & 50–950 ramp

primary

#103E4B

secondary

#854432

accent

#6540E8

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#040809

muted

#797B7B

Preview Lab

Preview with #103E4B

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

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