#101A3D#101A3D

#101A3D is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.1% C 0.068 H 268.6°. Best body text is #FFFFFF at 16.97:1 contrast (WCAG AA passes).

Color values

HEX	#101A3D
RGB	rgb(16, 26, 61)
HSL	hsl(227, 58%, 15%)
HSV	hsv(227, 74%, 24%)
CMYK	cmyk(73.8%, 57.4%, 0%, 76.1%)
CIE-LAB	lab(10.45, 9.28, -23.89)
CIE-LCH	lch(10.45, 25.63, 291.23°)
OKLab	oklab(23.14% -0.0017 -0.0685)
OKLCH	oklch(23.14% 0.068 268.6)
XYZ	xyz(1.4251, 1.1857, 4.5677)
Luminance	0.0119 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101A3D #3D3310

analogous

#10303D #101A3D #1D103D

triadic

#101A3D #3D101A #1A3D10

tetradic

#101A3D #3D1030 #3D3310 #103D1D

square

#101A3D #3D1030 #3D3310 #103D1D

split-complementary

#101A3D #3D1D10 #303D10

monochromatic

#060A18 #060A18 #101A3D #1D2F6D #29439E

Accessibility & contrast

On white

16.97

#101A3D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#101A3D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101A3D

16.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101A3D	#FFFFFF	#000000	##FFFFFF
##101A3D	1.00	16.97	1.24	16.97
#FFFFFF	16.97	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#071F3E

Deuteranopia (green-blind)

#011A3C

Tritanopia (blue-blind)

#002228

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #101a3d;
/* rgb */ color: rgb(16, 26, 61);
/* oklch */ color: oklch(23.1% 0.068 268.6);

Tailwind

colors: {
  custom: {
    50: '#545673',
    500: '#101a3d',
    950: '#000000',
  },
}

SCSS

$custom: #101a3d;
$custom-light: #545673;
$custom-dark: #000000;

JSON

{
  "hex": "#101a3d",
  "rgb": {
    "r": 16,
    "g": 26,
    "b": 61
  },
  "hsl": {
    "h": 226.667,
    "s": 58.442,
    "l": 15.098
  },
  "oklch": {
    "l": 0.23143,
    "c": 0.06848,
    "h": 268.6
  },
  "luminance": 0.01186
}

Semantic roles & 50–950 ramp

primary

#101A3D

secondary

#776832

accent

#BF46E2

background

#F5F5F7

surface

#E9E8ED

border

#C5C4C8

text

#030308

muted

#78787B

Preview Lab

Preview with #101A3D

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

Preview Lab → · Contrast checker → · Palette generator →