#100D2C#100D2C

#100D2C is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 18.5% C 0.060 H 283.1°. Best body text is #FFFFFF at 18.82:1 contrast (WCAG AA passes).

Color values

HEX	#100D2C
RGB	rgb(16, 13, 44)
HSL	hsl(246, 54%, 11%)
HSV	hsv(246, 70%, 17%)
CMYK	cmyk(63.6%, 70.5%, 0%, 82.7%)
CIE-LAB	lab(5.24, 10.69, -19.86)
CIE-LCH	lch(5.24, 22.55, 298.30°)
OKLab	oklab(18.47% 0.0137 -0.0588)
OKLCH	oklch(18.47% 0.06 283.1)
XYZ	xyz(0.8121, 0.5798, 2.4515)
Luminance	0.0058 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.82

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100D2C #292C0D

analogous

#0D192C #100D2C #1F0D2C

triadic

#100D2C #2C100D #0D2C10

tetradic

#100D2C #2C0D19 #292C0D #0D2C1F

square

#100D2C #2C0D19 #292C0D #0D2C1F

split-complementary

#100D2C #2C1F0D #192C0D

monochromatic

#090718 #090718 #100D2C #211B5B #32298A

Accessibility & contrast

On white

18.82

#100D2C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#100D2C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100D2C

18.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100D2C	#FFFFFF	#000000	##FFFFFF
##100D2C	1.00	18.82	1.12	18.82
#FFFFFF	18.82	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00122D

Deuteranopia (green-blind)

#00102B

Tritanopia (blue-blind)

#06141A

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #100d2c;
/* rgb */ color: rgb(16, 13, 44);
/* oklch */ color: oklch(18.5% 0.060 283.1);

Tailwind

colors: {
  custom: {
    50: '#504c65',
    500: '#100d2c',
    950: '#000000',
  },
}

SCSS

$custom: #100d2c;
$custom-light: #504c65;
$custom-dark: #000000;

JSON

{
  "hex": "#100d2c",
  "rgb": {
    "r": 16,
    "g": 13,
    "b": 44
  },
  "hsl": {
    "h": 245.806,
    "s": 54.386,
    "l": 11.176
  },
  "oklch": {
    "l": 0.18473,
    "c": 0.06037,
    "h": 283.1
  },
  "luminance": 0.0058
}

Semantic roles & 50–950 ramp

primary

#100D2C

secondary

#61672E

accent

#DE4ACF

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020105

muted

#78777A

Preview Lab

Preview with #100D2C

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

Preview Lab → · Contrast checker → · Palette generator →