#101C39#101C39

#101C39 is a very dark, muted blue. Relative luminance 0.012; OKLCH L 23.3% C 0.059 H 265.2°. Best body text is #FFFFFF at 16.84:1 contrast (WCAG AA passes).

Color values

HEX	#101C39
RGB	rgb(16, 28, 57)
HSL	hsl(222, 56%, 14%)
HSV	hsv(222, 72%, 22%)
CMYK	cmyk(71.9%, 50.9%, 0%, 77.6%)
CIE-LAB	lab(10.82, 6.00, -20.45)
CIE-LCH	lch(10.82, 21.31, 286.34°)
OKLab	oklab(23.33% -0.0048 -0.0583)
OKLCH	oklch(23.33% 0.059 265.2)
XYZ	xyz(1.3672, 1.2360, 4.0366)
Luminance	0.0124 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101C39 #392D10

analogous

#103139 #101C39 #191039

triadic

#101C39 #39101C #1C3910

tetradic

#101C39 #391031 #392D10 #103919

square

#101C39 #391031 #392D10 #103919

split-complementary

#101C39 #391910 #313910

monochromatic

#070C18 #070C18 #101C39 #1D3369 #2B4B99

Accessibility & contrast

On white

16.84

#101C39 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#101C39 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101C39

16.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101C39	#FFFFFF	#000000	##FFFFFF
##101C39	1.00	16.84	1.25	16.84
#FFFFFF	16.84	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F1F3A

Deuteranopia (green-blind)

#081B38

Tritanopia (blue-blind)

#002327

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #101c39;
/* rgb */ color: rgb(16, 28, 57);
/* oklch */ color: oklch(23.3% 0.059 265.2);

Tailwind

colors: {
  custom: {
    50: '#53576f',
    500: '#101c39',
    950: '#000000',
  },
}

SCSS

$custom: #101c39;
$custom-light: #53576f;
$custom-dark: #000000;

JSON

{
  "hex": "#101c39",
  "rgb": {
    "r": 16,
    "g": 28,
    "b": 57
  },
  "hsl": {
    "h": 222.439,
    "s": 56.164,
    "l": 14.314
  },
  "oklch": {
    "l": 0.23327,
    "c": 0.05851,
    "h": 265.2
  },
  "luminance": 0.01236
}

Semantic roles & 50–950 ramp

primary

#101C39

secondary

#736032

accent

#B348DF

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#030307

muted

#78787A

Preview Lab

Preview with #101C39

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

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