#102F4B#102F4B

#102F4B is a dark, moderate cyan. Relative luminance 0.027; OKLCH L 29.8% C 0.063 H 248.8°. Best body text is #FFFFFF at 13.72:1 contrast (WCAG AA passes).

Color values

HEX	#102F4B
RGB	rgb(16, 47, 75)
HSL	hsl(208, 65%, 18%)
HSV	hsv(208, 79%, 29%)
CMYK	cmyk(78.7%, 37.3%, 0%, 70.6%)
CIE-LAB	lab(18.59, -0.39, -20.62)
CIE-LCH	lch(18.59, 20.62, 268.91°)
OKLab	oklab(29.75% -0.0227 -0.0585)
OKLCH	oklch(29.75% 0.063 248.8)
XYZ	xyz(2.4997, 2.6509, 7.0352)
Luminance	0.0265 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#102F4B #4B2C10

analogous

#104B49 #102F4B #10114B

triadic

#102F4B #4B102F #2F4B10

tetradic

#102F4B #49104B #4B2C10 #114B10

square

#102F4B #49104B #4B2C10 #114B10

split-complementary

#102F4B #4B1011 #4B4910

monochromatic

#051019 #051019 #102F4B #1B4F7D #266EB0

Accessibility & contrast

On white

13.72

#102F4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#102F4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #102F4B

13.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##102F4B	#FFFFFF	#000000	##FFFFFF
##102F4B	1.00	13.72	1.53	13.72
#FFFFFF	13.72	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#22304C

Deuteranopia (green-blind)

#1A2B4A

Tritanopia (blue-blind)

#003639

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #102f4b;
/* rgb */ color: rgb(16, 47, 75);
/* oklch */ color: oklch(29.8% 0.063 248.8);

Tailwind

colors: {
  custom: {
    50: '#57677d',
    500: '#102f4b',
    950: '#000000',
  },
}

SCSS

$custom: #102f4b;
$custom-light: #57677d;
$custom-dark: #000000;

JSON

{
  "hex": "#102f4b",
  "rgb": {
    "r": 16,
    "g": 47,
    "b": 75
  },
  "hsl": {
    "h": 208.475,
    "s": 64.835,
    "l": 17.843
  },
  "oklch": {
    "l": 0.29754,
    "c": 0.06277,
    "h": 248.8
  },
  "luminance": 0.02651
}

Semantic roles & 50–950 ramp

primary

#102F4B

secondary

#855932

accent

#9040E8

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#030609

muted

#787A7B

Preview Lab

Preview with #102F4B

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

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