#100C25#100C25

#100C25 is a very dark, muted blue. Relative luminance 0.005; OKLCH L 17.6% C 0.050 H 287.5°. Best body text is #FFFFFF at 19.07:1 contrast (WCAG AA passes).

Color values

HEX	#100C25
RGB	rgb(16, 12, 37)
HSL	hsl(250, 51%, 10%)
HSV	hsv(250, 68%, 15%)
CMYK	cmyk(56.8%, 67.6%, 0%, 85.5%)
CIE-LAB	lab(4.58, 8.09, -15.58)
CIE-LCH	lch(4.58, 17.56, 297.43°)
OKLab	oklab(17.6% 0.015 -0.0475)
OKLCH	oklch(17.6% 0.05 287.5)
XYZ	xyz(0.6790, 0.5066, 1.8119)
Luminance	0.0051 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 8.23

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100C25 #21250C

analogous

#0C1525 #100C25 #1D0C25

triadic

#100C25 #25100C #0C2510

tetradic

#100C25 #250C15 #21250C #0C251D

square

#100C25 #250C15 #21250C #0C251D

split-complementary

#100C25 #251D0C #15250C

monochromatic

#0A0717 #0A0717 #100C25 #241B53 #382A81

Accessibility & contrast

On white

19.07

#100C25 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#100C25 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100C25

19.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100C25	#FFFFFF	#000000	##FFFFFF
##100C25	1.00	19.07	1.10	19.07
#FFFFFF	19.07	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#031026

Deuteranopia (green-blind)

#030F24

Tritanopia (blue-blind)

#0A1116

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #100c25;
/* rgb */ color: rgb(16, 12, 37);
/* oklch */ color: oklch(17.6% 0.050 287.5);

Tailwind

colors: {
  custom: {
    50: '#4f4c5f',
    500: '#100c25',
    950: '#000000',
  },
}

SCSS

$custom: #100c25;
$custom-light: #4f4c5f;
$custom-dark: #000000;

JSON

{
  "hex": "#100c25",
  "rgb": {
    "r": 16,
    "g": 12,
    "b": 37
  },
  "hsl": {
    "h": 249.6,
    "s": 51.02,
    "l": 9.608
  },
  "oklch": {
    "l": 0.17599,
    "c": 0.04982,
    "h": 287.5
  },
  "luminance": 0.00507
}

Semantic roles & 50–950 ramp

primary

#100C25

secondary

#57602D

accent

#DA4DC4

background

#F4F4F5

surface

#E7E7E9

border

#C3C3C5

text

#020104

muted

#787779

Preview Lab

Preview with #100C25

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

Preview Lab → · Contrast checker → · Palette generator →