#101C31#101C31

#101C31 is a very dark, muted blue. Relative luminance 0.012; OKLCH L 22.7% C 0.045 H 261.0°. Best body text is #FFFFFF at 17.04:1 contrast (WCAG AA passes).

Color values

HEX	#101C31
RGB	rgb(16, 28, 49)
HSL	hsl(218, 51%, 13%)
HSV	hsv(218, 67%, 19%)
CMYK	cmyk(67.3%, 42.9%, 0%, 80.8%)
CIE-LAB	lab(10.28, 2.62, -15.55)
CIE-LCH	lch(10.28, 15.77, 279.55°)
OKLab	oklab(22.73% -0.007 -0.044)
OKLCH	oklch(22.73% 0.045 261)
XYZ	xyz(1.1831, 1.1623, 3.0671)
Luminance	0.0116 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101C31 #312510

analogous

#102C31 #101C31 #141031

triadic

#101C31 #31101C #1C3110

tetradic

#101C31 #31102C #312510 #103114

square

#101C31 #31102C #312510 #103114

split-complementary

#101C31 #311410 #2C3110

monochromatic

#080D17 #080D17 #101C31 #1F365F #2E518D

Accessibility & contrast

On white

17.04

#101C31 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#101C31 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101C31

17.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101C31	#FFFFFF	#000000	##FFFFFF
##101C31	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)

#131E32

Deuteranopia (green-blind)

#0F1B31

Tritanopia (blue-blind)

#002124

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #101c31;
/* rgb */ color: rgb(16, 28, 49);
/* oklch */ color: oklch(22.7% 0.045 261.0);

Tailwind

colors: {
  custom: {
    50: '#515769',
    500: '#101c31',
    950: '#000000',
  },
}

SCSS

$custom: #101c31;
$custom-light: #515769;
$custom-dark: #000000;

JSON

{
  "hex": "#101c31",
  "rgb": {
    "r": 16,
    "g": 28,
    "b": 49
  },
  "hsl": {
    "h": 218.182,
    "s": 50.769,
    "l": 12.745
  },
  "oklch": {
    "l": 0.2273,
    "c": 0.04452,
    "h": 261
  },
  "luminance": 0.01162
}

Semantic roles & 50–950 ramp

primary

#101C31

secondary

#6A5633

accent

#A74EDA

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020306

muted

#78787A

Preview Lab

Preview with #101C31

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

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