#100C27#100C27

#100C27 is a very dark, muted blue. Relative luminance 0.005; OKLCH L 17.8% C 0.053 H 286.4°. Best body text is #FFFFFF at 19.02:1 contrast (WCAG AA passes).

Color values

HEX	#100C27
RGB	rgb(16, 12, 39)
HSL	hsl(249, 53%, 10%)
HSV	hsv(249, 69%, 15%)
CMYK	cmyk(59%, 69.2%, 0%, 84.7%)
CIE-LAB	lab(4.69, 8.91, -16.93)
CIE-LCH	lch(4.69, 19.13, 297.75°)
OKLab	oklab(17.78% 0.0151 -0.0512)
OKLCH	oklch(17.78% 0.053 286.4)
XYZ	xyz(0.7113, 0.5196, 1.9819)
Luminance	0.0052 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 7.42

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100C27 #23270C

analogous

#0C1527 #100C27 #1E0C27

triadic

#100C27 #27100C #0C2710

tetradic

#100C27 #270C15 #23270C #0C271E

square

#100C27 #270C15 #23270C #0C271E

split-complementary

#100C27 #271E0C #15270C

monochromatic

#0A0717 #0A0717 #100C27 #231A56 #362985

Accessibility & contrast

On white

19.02

#100C27 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#100C27 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100C27

19.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100C27	#FFFFFF	#000000	##FFFFFF
##100C27	1.00	19.02	1.10	19.02
#FFFFFF	19.02	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#021128

Deuteranopia (green-blind)

#010F26

Tritanopia (blue-blind)

#091217

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #100c27;
/* rgb */ color: rgb(16, 12, 39);
/* oklch */ color: oklch(17.8% 0.053 286.4);

Tailwind

colors: {
  custom: {
    50: '#4f4c61',
    500: '#100c27',
    950: '#000000',
  },
}

SCSS

$custom: #100c27;
$custom-light: #4f4c61;
$custom-dark: #000000;

JSON

{
  "hex": "#100c27",
  "rgb": {
    "r": 16,
    "g": 12,
    "b": 39
  },
  "hsl": {
    "h": 248.889,
    "s": 52.941,
    "l": 10
  },
  "oklch": {
    "l": 0.17778,
    "c": 0.0534,
    "h": 286.4
  },
  "luminance": 0.0052
}

Semantic roles & 50–950 ramp

primary

#100C27

secondary

#5A622D

accent

#DC4BC7

background

#F4F4F5

surface

#E7E7E9

border

#C3C3C5

text

#020105

muted

#787779

Preview Lab

Preview with #100C27

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

Preview Lab → · Contrast checker → · Palette generator →