#101F31#101F31

#101F31 is a very dark, muted cyan. Relative luminance 0.013; OKLCH L 23.6% C 0.041 H 253.8°. Best body text is #FFFFFF at 16.63:1 contrast (WCAG AA passes).

Color values

HEX	#101F31
RGB	rgb(16, 31, 49)
HSL	hsl(213, 51%, 13%)
HSV	hsv(213, 67%, 19%)
CMYK	cmyk(67.3%, 36.7%, 0%, 80.8%)
CIE-LAB	lab(11.36, 0.35, -13.85)
CIE-LCH	lch(11.36, 13.85, 271.44°)
OKLab	oklab(23.57% -0.0113 -0.039)
OKLCH	oklch(23.57% 0.041 253.8)
XYZ	xyz(1.2579, 1.3118, 3.0920)
Luminance	0.0131 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101F31 #312210

analogous

#102F31 #101F31 #111031

triadic

#101F31 #31101F #1F3110

tetradic

#101F31 #31102F #312210 #103111

square

#101F31 #31102F #312210 #103111

split-complementary

#101F31 #311110 #2F3110

monochromatic

#080F17 #080F17 #101F31 #1F3C5F #2E598D

Accessibility & contrast

On white

16.63

#101F31 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#101F31 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101F31

16.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101F31	#FFFFFF	#000000	##FFFFFF
##101F31	1.00	16.63	1.26	16.63
#FFFFFF	16.63	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#182032

Deuteranopia (green-blind)

#131D31

Tritanopia (blue-blind)

#002325

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #101f31;
/* rgb */ color: rgb(16, 31, 49);
/* oklch */ color: oklch(23.6% 0.041 253.8);

Tailwind

colors: {
  custom: {
    50: '#515a69',
    500: '#101f31',
    950: '#000000',
  },
}

SCSS

$custom: #101f31;
$custom-light: #515a69;
$custom-dark: #000000;

JSON

{
  "hex": "#101f31",
  "rgb": {
    "r": 16,
    "g": 31,
    "b": 49
  },
  "hsl": {
    "h": 212.727,
    "s": 50.769,
    "l": 12.745
  },
  "oklch": {
    "l": 0.23573,
    "c": 0.04061,
    "h": 253.8
  },
  "luminance": 0.01312
}

Semantic roles & 50–950 ramp

primary

#101F31

secondary

#6A5133

accent

#9A4EDA

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020306

muted

#78787A

Preview Lab

Preview with #101F31

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

Preview Lab → · Contrast checker → · Palette generator →