#100D41#100D41

#100D41 is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.7% C 0.094 H 276.9°. Best body text is #FFFFFF at 18.17:1 contrast (WCAG AA passes).

Color values

HEX	#100D41
RGB	rgb(16, 13, 65)
HSL	hsl(243, 67%, 15%)
HSV	hsv(243, 80%, 25%)
CMYK	cmyk(75.4%, 80%, 0%, 74.5%)
CIE-LAB	lab(7.04, 20.61, -32.28)
CIE-LCH	lch(7.04, 38.30, 302.55°)
OKLab	oklab(20.71% 0.0113 -0.0934)
OKLCH	oklch(20.71% 0.094 276.9)
XYZ	xyz(1.3114, 0.7795, 5.0814)
Luminance	0.0078 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Navy Blue (survey)

#001146

ΔE00 3.03

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100D41 #3E410D

analogous

#0D2441 #100D41 #2A0D41

triadic

#100D41 #41100D #0D4110

tetradic

#100D41 #410D24 #3E410D #0D412A

square

#100D41 #410D24 #3E410D #0D412A

split-complementary

#100D41 #412A0D #24410D

monochromatic

#06051A #06051A #100D41 #1D1774 #2921A7

Accessibility & contrast

On white

18.17

#100D41 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#100D41 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100D41

18.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100D41	#FFFFFF	#000000	##FFFFFF
##100D41	1.00	18.17	1.16	18.17
#FFFFFF	18.17	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001843

Deuteranopia (green-blind)

#001340

Tritanopia (blue-blind)

#001B25

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #100d41;
/* rgb */ color: rgb(16, 13, 65);
/* oklch */ color: oklch(20.7% 0.094 276.9);

Tailwind

colors: {
  custom: {
    50: '#564c76',
    500: '#100d41',
    950: '#000000',
  },
}

SCSS

$custom: #100d41;
$custom-light: #564c76;
$custom-dark: #000000;

JSON

{
  "hex": "#100d41",
  "rgb": {
    "r": 16,
    "g": 13,
    "b": 65
  },
  "hsl": {
    "h": 243.462,
    "s": 66.667,
    "l": 15.294
  },
  "oklch": {
    "l": 0.20712,
    "c": 0.09409,
    "h": 276.9
  },
  "luminance": 0.0078
}

Semantic roles & 50–950 ramp

primary

#100D41

secondary

#787D2D

accent

#EA3EE0

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030108

muted

#78777B

Preview Lab

Preview with #100D41

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

Preview Lab → · Contrast checker → · Palette generator →