#10153D#10153D

#10153D is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 21.9% C 0.076 H 273.0°. Best body text is #FFFFFF at 17.55:1 contrast (WCAG AA passes).

Color values

HEX	#10153D
RGB	rgb(16, 21, 61)
HSL	hsl(233, 58%, 15%)
HSV	hsv(233, 74%, 24%)
CMYK	cmyk(73.8%, 65.6%, 0%, 76.1%)
CIE-LAB	lab(8.85, 13.18, -26.47)
CIE-LCH	lch(8.85, 29.58, 296.47°)
OKLab	oklab(21.94% 0.004 -0.0761)
OKLCH	oklch(21.94% 0.076 273)
XYZ	xyz(1.3239, 0.9833, 4.5340)
Luminance	0.0098 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10153D #3D3810

analogous

#102C3D #10153D #21103D

triadic

#10153D #3D1015 #153D10

tetradic

#10153D #3D102C #3D3810 #103D21

square

#10153D #3D102C #3D3810 #103D21

split-complementary

#10153D #3D2110 #2C3D10

monochromatic

#060818 #060818 #10153D #1D266D #29369E

Accessibility & contrast

On white

17.55

#10153D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#10153D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10153D

17.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10153D	#FFFFFF	#000000	##FFFFFF
##10153D	1.00	17.55	1.20	17.55
#FFFFFF	17.55	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001B3E

Deuteranopia (green-blind)

#00173C

Tritanopia (blue-blind)

#001F26

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #10153d;
/* rgb */ color: rgb(16, 21, 61);
/* oklch */ color: oklch(21.9% 0.076 273.0);

Tailwind

colors: {
  custom: {
    50: '#555273',
    500: '#10153d',
    950: '#000000',
  },
}

SCSS

$custom: #10153d;
$custom-light: #555273;
$custom-dark: #000000;

JSON

{
  "hex": "#10153d",
  "rgb": {
    "r": 16,
    "g": 21,
    "b": 61
  },
  "hsl": {
    "h": 233.333,
    "s": 58.442,
    "l": 15.098
  },
  "oklch": {
    "l": 0.21939,
    "c": 0.07625,
    "h": 273
  },
  "luminance": 0.00983
}

Semantic roles & 50–950 ramp

primary

#10153D

secondary

#776F32

accent

#D046E2

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030208

muted

#78787B

Preview Lab

Preview with #10153D

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

Preview Lab → · Contrast checker → · Palette generator →