#101D2B#101D2B

#101D2B is a very dark, muted cyan. Relative luminance 0.012; OKLCH L 22.6% C 0.033 H 251.2°. Best body text is #FFFFFF at 17.04:1 contrast (WCAG AA passes).

Color values

HEX	#101D2B
RGB	rgb(16, 29, 43)
HSL	hsl(211, 46%, 12%)
HSV	hsv(211, 63%, 17%)
CMYK	cmyk(62.8%, 32.6%, 0%, 83.1%)
CIE-LAB	lab(10.28, -0.57, -11.16)
CIE-LCH	lch(10.28, 11.18, 267.06°)
OKLab	oklab(22.62% -0.0106 -0.0312)
OKLCH	oklch(22.62% 0.033 251.2)
XYZ	xyz(1.0889, 1.1632, 2.4522)
Luminance	0.0116 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101D2B #2B1E10

analogous

#102B2B #101D2B #11102B

triadic

#101D2B #2B101D #1D2B10

tetradic

#101D2B #2B102B #2B1E10 #102B11

square

#101D2B #2B102B #2B1E10 #102B11

split-complementary

#101D2B #2B1110 #2B2B10

monochromatic

#080F16 #080F16 #101D2B #213B58 #315984

Accessibility & contrast

On white

17.04

#101D2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#101D2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101D2B

17.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101D2B	#FFFFFF	#000000	##FFFFFF
##101D2B	1.00	17.04	1.23	17.04
#FFFFFF	17.04	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#171E2C

Deuteranopia (green-blind)

#141B2B

Tritanopia (blue-blind)

#042022

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #101d2b;
/* rgb */ color: rgb(16, 29, 43);
/* oklch */ color: oklch(22.6% 0.033 251.2);

Tailwind

colors: {
  custom: {
    50: '#505864',
    500: '#101d2b',
    950: '#000000',
  },
}

SCSS

$custom: #101d2b;
$custom-light: #505864;
$custom-dark: #000000;

JSON

{
  "hex": "#101d2b",
  "rgb": {
    "r": 16,
    "g": 29,
    "b": 43
  },
  "hsl": {
    "h": 211.111,
    "s": 45.763,
    "l": 11.569
  },
  "oklch": {
    "l": 0.22618,
    "c": 0.03301,
    "h": 251.2
  },
  "luminance": 0.01163
}

Semantic roles & 50–950 ramp

primary

#101D2B

secondary

#644C33

accent

#9652D5

background

#F4F5F5

surface

#E7E9EA

border

#C3C5C6

text

#020305

muted

#787879

Preview Lab

Preview with #101D2B

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

Preview Lab → · Contrast checker → · Palette generator →