#10103D#10103D

#10103D is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.8% C 0.084 H 276.3°. Best body text is #FFFFFF at 18.05:1 contrast (WCAG AA passes).

Color values

HEX	#10103D
RGB	rgb(16, 16, 61)
HSL	hsl(240, 58%, 15%)
HSV	hsv(240, 74%, 24%)
CMYK	cmyk(73.8%, 73.8%, 0%, 76.1%)
CIE-LAB	lab(7.39, 16.94, -28.86)
CIE-LCH	lch(7.39, 33.46, 300.41°)
OKLab	oklab(20.85% 0.0092 -0.0833)
OKLCH	oklch(20.85% 0.084 276.3)
XYZ	xyz(1.2410, 0.8176, 4.5064)
Luminance	0.0082 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Navy Blue (survey)

#001146

ΔE00 3.21

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10103D #3D3D10

analogous

#10263D #10103D #26103D

triadic

#10103D #3D1010 #103D10

tetradic

#10103D #3D1026 #3D3D10 #103D26

square

#10103D #3D1026 #3D3D10 #103D26

split-complementary

#10103D #3D2610 #263D10

monochromatic

#060618 #060618 #10103D #1D1D6D #29299E

Accessibility & contrast

On white

18.05

#10103D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#10103D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10103D

18.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10103D	#FFFFFF	#000000	##FFFFFF
##10103D	1.00	18.05	1.16	18.05
#FFFFFF	18.05	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00183E

Deuteranopia (green-blind)

#00143C

Tritanopia (blue-blind)

#001C24

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #10103d;
/* rgb */ color: rgb(16, 16, 61);
/* oklch */ color: oklch(20.8% 0.084 276.3);

Tailwind

colors: {
  custom: {
    50: '#554e73',
    500: '#10103d',
    950: '#000000',
  },
}

SCSS

$custom: #10103d;
$custom-light: #554e73;
$custom-dark: #000000;

JSON

{
  "hex": "#10103d",
  "rgb": {
    "r": 16,
    "g": 16,
    "b": 61
  },
  "hsl": {
    "h": 240,
    "s": 58.442,
    "l": 15.098
  },
  "oklch": {
    "l": 0.20846,
    "c": 0.0838,
    "h": 276.3
  },
  "luminance": 0.00818
}

Semantic roles & 50–950 ramp

primary

#10103D

secondary

#777732

accent

#E246E2

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030108

muted

#78777B

Preview Lab

Preview with #10103D

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

Preview Lab → · Contrast checker → · Palette generator →