#100C31#100C31

#100C31 is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 18.8% C 0.070 H 282.1°. Best body text is #FFFFFF at 18.77:1 contrast (WCAG AA passes).

Color values

HEX	#100C31
RGB	rgb(16, 12, 49)
HSL	hsl(246, 61%, 12%)
HSV	hsv(246, 76%, 19%)
CMYK	cmyk(67.3%, 75.5%, 0%, 80.8%)
CIE-LAB	lab(5.37, 13.63, -23.37)
CIE-LCH	lch(5.37, 27.06, 300.25°)
OKLab	oklab(18.75% 0.0148 -0.0689)
OKLCH	oklch(18.75% 0.07 282.1)
XYZ	xyz(0.8994, 0.5948, 2.9726)
Luminance	0.0060 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100C31 #2D310C

analogous

#0C1B31 #100C31 #230C31

triadic

#100C31 #31100C #0C3110

tetradic

#100C31 #310C1B #2D310C #0C3123

square

#100C31 #310C1B #2D310C #0C3123

split-complementary

#100C31 #31230C #1B310C

monochromatic

#080619 #080619 #100C31 #201862 #302493

Accessibility & contrast

On white

18.77

#100C31 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#100C31 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100C31

18.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100C31	#FFFFFF	#000000	##FFFFFF
##100C31	1.00	18.77	1.12	18.77
#FFFFFF	18.77	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001332

Deuteranopia (green-blind)

#001030

Tritanopia (blue-blind)

#02151C

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #100c31;
/* rgb */ color: rgb(16, 12, 49);
/* oklch */ color: oklch(18.8% 0.070 282.1);

Tailwind

colors: {
  custom: {
    50: '#524b69',
    500: '#100c31',
    950: '#000000',
  },
}

SCSS

$custom: #100c31;
$custom-light: #524b69;
$custom-dark: #000000;

JSON

{
  "hex": "#100c31",
  "rgb": {
    "r": 16,
    "g": 12,
    "b": 49
  },
  "hsl": {
    "h": 246.486,
    "s": 60.656,
    "l": 11.961
  },
  "oklch": {
    "l": 0.18753,
    "c": 0.07047,
    "h": 282.1
  },
  "luminance": 0.00595
}

Semantic roles & 50–950 ramp

primary

#100C31

secondary

#666D2C

accent

#E444D3

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020106

muted

#78777A

Preview Lab

Preview with #100C31

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

Preview Lab → · Contrast checker → · Palette generator →