#102D4B#102D4B

#102D4B is a dark, moderate cyan. Relative luminance 0.025; OKLCH L 29.2% C 0.065 H 251.7°. Best body text is #FFFFFF at 14.01:1 contrast (WCAG AA passes).

Color values

HEX	#102D4B
RGB	rgb(16, 45, 75)
HSL	hsl(211, 65%, 18%)
HSV	hsv(211, 79%, 29%)
CMYK	cmyk(78.7%, 40%, 0%, 70.6%)
CIE-LAB	lab(17.89, 1.03, -21.72)
CIE-LCH	lch(17.89, 21.74, 272.71°)
OKLab	oklab(29.21% -0.0204 -0.0617)
OKLCH	oklch(29.21% 0.065 251.7)
XYZ	xyz(2.4216, 2.4947, 7.0091)
Luminance	0.0249 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#102D4B #4B2E10

analogous

#104A4B #102D4B #10104B

triadic

#102D4B #4B102D #2D4B10

tetradic

#102D4B #4B104A #4B2E10 #104B10

square

#102D4B #4B104A #4B2E10 #104B10

split-complementary

#102D4B #4B1010 #4A4B10

monochromatic

#050F19 #050F19 #102D4B #1B4B7D #266AB0

Accessibility & contrast

On white

14.01

#102D4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#102D4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #102D4B

14.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##102D4B	#FFFFFF	#000000	##FFFFFF
##102D4B	1.00	14.01	1.50	14.01
#FFFFFF	14.01	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	14.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F2F4C

Deuteranopia (green-blind)

#17294A

Tritanopia (blue-blind)

#003438

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #102d4b;
/* rgb */ color: rgb(16, 45, 75);
/* oklch */ color: oklch(29.2% 0.065 251.7);

Tailwind

colors: {
  custom: {
    50: '#57657d',
    500: '#102d4b',
    950: '#000000',
  },
}

SCSS

$custom: #102d4b;
$custom-light: #57657d;
$custom-dark: #000000;

JSON

{
  "hex": "#102d4b",
  "rgb": {
    "r": 16,
    "g": 45,
    "b": 75
  },
  "hsl": {
    "h": 210.508,
    "s": 64.835,
    "l": 17.843
  },
  "oklch": {
    "l": 0.2921,
    "c": 0.06504,
    "h": 251.7
  },
  "luminance": 0.02495
}

Semantic roles & 50–950 ramp

primary

#102D4B

secondary

#855C32

accent

#9540E8

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#030509

muted

#787A7B

Preview Lab

Preview with #102D4B

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

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