#101631#101631

#101631 is a very dark, muted blue. Relative luminance 0.009; OKLCH L 21.1% C 0.054 H 271.7°. Best body text is #FFFFFF at 17.78:1 contrast (WCAG AA passes).

Color values

HEX	#101631
RGB	rgb(16, 22, 49)
HSL	hsl(229, 51%, 13%)
HSV	hsv(229, 67%, 19%)
CMYK	cmyk(67.3%, 55.1%, 0%, 80.8%)
CIE-LAB	lab(8.18, 7.30, -18.88)
CIE-LCH	lch(8.18, 20.24, 291.15°)
OKLab	oklab(21.12% 0.0016 -0.0538)
OKLCH	oklch(21.12% 0.054 271.7)
XYZ	xyz(1.0548, 0.9057, 3.0244)
Luminance	0.0091 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101631 #312B10

analogous

#102631 #101631 #1A1031

triadic

#101631 #311016 #163110

tetradic

#101631 #311026 #312B10 #10311A

square

#101631 #311026 #312B10 #10311A

split-complementary

#101631 #311A10 #263110

monochromatic

#080A17 #080A17 #101631 #1F2B5F #2E3F8D

Accessibility & contrast

On white

17.78

#101631 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#101631 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101631

17.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101631	#FFFFFF	#000000	##FFFFFF
##101631	1.00	17.78	1.18	17.78
#FFFFFF	17.78	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A1932

Deuteranopia (green-blind)

#061730

Tritanopia (blue-blind)

#011C21

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #101631;
/* rgb */ color: rgb(16, 22, 49);
/* oklch */ color: oklch(21.1% 0.054 271.7);

Tailwind

colors: {
  custom: {
    50: '#515269',
    500: '#101631',
    950: '#000000',
  },
}

SCSS

$custom: #101631;
$custom-light: #515269;
$custom-dark: #000000;

JSON

{
  "hex": "#101631",
  "rgb": {
    "r": 16,
    "g": 22,
    "b": 49
  },
  "hsl": {
    "h": 229.091,
    "s": 50.769,
    "l": 12.745
  },
  "oklch": {
    "l": 0.21115,
    "c": 0.05382,
    "h": 271.7
  },
  "luminance": 0.00906
}

Semantic roles & 50–950 ramp

primary

#101631

secondary

#6A6033

accent

#C14EDA

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020206

muted

#78787A

Preview Lab

Preview with #101631

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

Preview Lab → · Contrast checker → · Palette generator →