#101C3D#101C3D

#101C3D is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 23.6% C 0.065 H 266.4°. Best body text is #FFFFFF at 16.73:1 contrast (WCAG AA passes).

Color values

HEX	#101C3D
RGB	rgb(16, 28, 61)
HSL	hsl(224, 58%, 15%)
HSV	hsv(224, 74%, 24%)
CMYK	cmyk(73.8%, 54.1%, 0%, 76.1%)
CIE-LAB	lab(11.12, 7.72, -22.82)
CIE-LCH	lch(11.12, 24.09, 288.69°)
OKLab	oklab(23.65% -0.0041 -0.0653)
OKLCH	oklch(23.65% 0.065 266.4)
XYZ	xyz(1.4710, 1.2775, 4.5830)
Luminance	0.0128 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101C3D #3D3110

analogous

#10323D #101C3D #1A103D

triadic

#101C3D #3D101C #1C3D10

tetradic

#101C3D #3D1032 #3D3110 #103D1A

square

#101C3D #3D1032 #3D3110 #103D1A

split-complementary

#101C3D #3D1A10 #323D10

monochromatic

#060B18 #060B18 #101C3D #1D326D #29499E

Accessibility & contrast

On white

16.73

#101C3D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#101C3D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101C3D

16.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101C3D	#FFFFFF	#000000	##FFFFFF
##101C3D	1.00	16.73	1.26	16.73
#FFFFFF	16.73	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B203E

Deuteranopia (green-blind)

#041C3C

Tritanopia (blue-blind)

#002429

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #101c3d;
/* rgb */ color: rgb(16, 28, 61);
/* oklch */ color: oklch(23.6% 0.065 266.4);

Tailwind

colors: {
  custom: {
    50: '#545773',
    500: '#101c3d',
    950: '#000000',
  },
}

SCSS

$custom: #101c3d;
$custom-light: #545773;
$custom-dark: #000000;

JSON

{
  "hex": "#101c3d",
  "rgb": {
    "r": 16,
    "g": 28,
    "b": 61
  },
  "hsl": {
    "h": 224,
    "s": 58.442,
    "l": 15.098
  },
  "oklch": {
    "l": 0.2365,
    "c": 0.06541,
    "h": 266.4
  },
  "luminance": 0.01278
}

Semantic roles & 50–950 ramp

primary

#101C3D

secondary

#776532

accent

#B846E2

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030308

muted

#78787B

Preview Lab

Preview with #101C3D

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

Preview Lab → · Contrast checker → · Palette generator →