#10103E#10103E

#10103E is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 21.0% C 0.085 H 276.1°. Best body text is #FFFFFF at 18.01:1 contrast (WCAG AA passes).

Color values

HEX	#10103E
RGB	rgb(16, 16, 62)
HSL	hsl(240, 59%, 15%)
HSV	hsv(240, 74%, 24%)
CMYK	cmyk(74.2%, 74.2%, 0%, 75.7%)
CIE-LAB	lab(7.48, 17.37, -29.42)
CIE-LCH	lch(7.48, 34.16, 300.56°)
OKLab	oklab(20.95% 0.0091 -0.0849)
OKLCH	oklch(20.95% 0.085 276.1)
XYZ	xyz(1.2682, 0.8284, 4.6496)
Luminance	0.0083 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Navy Blue (survey)

#001146

ΔE00 3.04

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10103E #3E3E10

analogous

#10273E #10103E #27103E

triadic

#10103E #3E1010 #103E10

tetradic

#10103E #3E1027 #3E3E10 #103E27

square

#10103E #3E1027 #3E3E10 #103E27

split-complementary

#10103E #3E2710 #273E10

monochromatic

#060618 #060618 #10103E #1D1D6F #29299F

Accessibility & contrast

On white

18.01

#10103E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#10103E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10103E

18.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10103E	#FFFFFF	#000000	##FFFFFF
##10103E	1.00	18.01	1.17	18.01
#FFFFFF	18.01	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	18.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00193F

Deuteranopia (green-blind)

#00143D

Tritanopia (blue-blind)

#001C25

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #10103e;
/* rgb */ color: rgb(16, 16, 62);
/* oklch */ color: oklch(21.0% 0.085 276.1);

Tailwind

colors: {
  custom: {
    50: '#554e74',
    500: '#10103e',
    950: '#000000',
  },
}

SCSS

$custom: #10103e;
$custom-light: #554e74;
$custom-dark: #000000;

JSON

{
  "hex": "#10103e",
  "rgb": {
    "r": 16,
    "g": 16,
    "b": 62
  },
  "hsl": {
    "h": 240,
    "s": 58.974,
    "l": 15.294
  },
  "oklch": {
    "l": 0.20953,
    "c": 0.08538,
    "h": 276.1
  },
  "luminance": 0.00829
}

Semantic roles & 50–950 ramp

primary

#10103E

secondary

#787832

accent

#E246E2

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030108

muted

#78777B

Preview Lab

Preview with #10103E

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

Preview Lab → · Contrast checker → · Palette generator →