#100C29#100C29

#100C29 is a very dark, muted blue. Relative luminance 0.005; OKLCH L 18.0% C 0.057 H 285.4°. Best body text is #FFFFFF at 18.98:1 contrast (WCAG AA passes).

Color values

HEX	#100C29
RGB	rgb(16, 12, 41)
HSL	hsl(248, 55%, 10%)
HSV	hsv(248, 71%, 16%)
CMYK	cmyk(61%, 70.7%, 0%, 83.9%)
CIE-LAB	lab(4.82, 9.77, -18.26)
CIE-LCH	lch(4.82, 20.71, 298.15°)
OKLab	oklab(17.96% 0.0151 -0.0549)
OKLCH	oklch(17.96% 0.057 285.4)
XYZ	xyz(0.7453, 0.5332, 2.1610)
Luminance	0.0053 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.65

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100C29 #25290C

analogous

#0C1629 #100C29 #1E0C29

triadic

#100C29 #29100C #0C2910

tetradic

#100C29 #290C16 #25290C #0C291E

square

#100C29 #290C16 #25290C #0C291E

split-complementary

#100C29 #291E0C #16290C

monochromatic

#090718 #090718 #100C29 #221A58 #352888

Accessibility & contrast

On white

18.98

#100C29 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#100C29 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100C29

18.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100C29	#FFFFFF	#000000	##FFFFFF
##100C29	1.00	18.98	1.11	18.98
#FFFFFF	18.98	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00112A

Deuteranopia (green-blind)

#000F28

Tritanopia (blue-blind)

#071318

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #100c29;
/* rgb */ color: rgb(16, 12, 41);
/* oklch */ color: oklch(18.0% 0.057 285.4);

Tailwind

colors: {
  custom: {
    50: '#4f4c63',
    500: '#100c29',
    950: '#000000',
  },
}

SCSS

$custom: #100c29;
$custom-light: #4f4c63;
$custom-dark: #000000;

JSON

{
  "hex": "#100c29",
  "rgb": {
    "r": 16,
    "g": 12,
    "b": 41
  },
  "hsl": {
    "h": 248.276,
    "s": 54.717,
    "l": 10.392
  },
  "oklch": {
    "l": 0.17962,
    "c": 0.05692,
    "h": 285.4
  },
  "luminance": 0.00533
}

Semantic roles & 50–950 ramp

primary

#100C29

secondary

#5C642D

accent

#DE4ACA

background

#F4F4F5

surface

#E7E7EA

border

#C3C3C6

text

#020105

muted

#787779

Preview Lab

Preview with #100C29

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

Preview Lab → · Contrast checker → · Palette generator →