#101D3C#101D3C

#101D3C is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 23.8% C 0.062 H 265.0°. Best body text is #FFFFFF at 16.63:1 contrast (WCAG AA passes).

Color values

HEX	#101D3C
RGB	rgb(16, 29, 60)
HSL	hsl(222, 58%, 15%)
HSV	hsv(222, 73%, 24%)
CMYK	cmyk(73.3%, 51.7%, 0%, 76.5%)
CIE-LAB	lab(11.38, 6.51, -21.69)
CIE-LCH	lch(11.38, 22.64, 286.71°)
OKLab	oklab(23.83% -0.0055 -0.0619)
OKLCH	oklch(23.83% 0.062 265)
XYZ	xyz(1.4684, 1.3150, 4.4505)
Luminance	0.0132 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101D3C #3C2F10

analogous

#10333C #101D3C #19103C

triadic

#101D3C #3C101D #1D3C10

tetradic

#101D3C #3C1033 #3C2F10 #103C19

square

#101D3C #3C1033 #3C2F10 #103C19

split-complementary

#101D3C #3C1910 #333C10

monochromatic

#060C18 #060C18 #101D3C #1D346C #2A4C9D

Accessibility & contrast

On white

16.63

#101D3C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#101D3C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101D3C

16.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101D3C	#FFFFFF	#000000	##FFFFFF
##101D3C	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)

#0E203D

Deuteranopia (green-blind)

#071C3B

Tritanopia (blue-blind)

#002429

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #101d3c;
/* rgb */ color: rgb(16, 29, 60);
/* oklch */ color: oklch(23.8% 0.062 265.0);

Tailwind

colors: {
  custom: {
    50: '#545872',
    500: '#101d3c',
    950: '#000000',
  },
}

SCSS

$custom: #101d3c;
$custom-light: #545872;
$custom-dark: #000000;

JSON

{
  "hex": "#101d3c",
  "rgb": {
    "r": 16,
    "g": 29,
    "b": 60
  },
  "hsl": {
    "h": 222.273,
    "s": 57.895,
    "l": 14.902
  },
  "oklch": {
    "l": 0.23827,
    "c": 0.06217,
    "h": 265
  },
  "luminance": 0.01315
}

Semantic roles & 50–950 ramp

primary

#101D3C

secondary

#766232

accent

#B347E1

background

#F5F5F6

surface

#E8E9EC

border

#C4C5C7

text

#030308

muted

#78787B

Preview Lab

Preview with #101D3C

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

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