#100B3E#100B3E

#100B3E is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 20.0% C 0.092 H 278.4°. Best body text is #FFFFFF at 18.43:1 contrast (WCAG AA passes).

Color values

HEX	#100B3E
RGB	rgb(16, 11, 62)
HSL	hsl(246, 70%, 14%)
HSV	hsv(246, 82%, 24%)
CMYK	cmyk(74.2%, 82.3%, 0%, 75.7%)
CIE-LAB	lab(6.30, 20.40, -31.35)
CIE-LCH	lch(6.30, 37.40, 303.05°)
OKLab	oklab(20.01% 0.0135 -0.0912)
OKLCH	oklch(20.01% 0.092 278.4)
XYZ	xyz(1.2026, 0.6972, 4.6277)
Luminance	0.0070 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100B3E #393E0B

analogous

#0B203E #100B3E #2A0B3E

triadic

#100B3E #3E100B #0B3E10

tetradic

#100B3E #3E0B20 #393E0B #0B3E2A

square

#100B3E #3E0B20 #393E0B #0B3E2A

split-complementary

#100B3E #3E2A0B #203E0B

monochromatic

#07051A #07051A #100B3E #1D1472 #2B1DA6

Accessibility & contrast

On white

18.43

#100B3E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#100B3E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100B3E

18.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100B3E	#FFFFFF	#000000	##FFFFFF
##100B3E	1.00	18.43	1.14	18.43
#FFFFFF	18.43	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001640

Deuteranopia (green-blind)

#00123D

Tritanopia (blue-blind)

#001923

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #100b3e;
/* rgb */ color: rgb(16, 11, 62);
/* oklch */ color: oklch(20.0% 0.092 278.4);

Tailwind

colors: {
  custom: {
    50: '#564b74',
    500: '#100b3e',
    950: '#000000',
  },
}

SCSS

$custom: #100b3e;
$custom-light: #564b74;
$custom-dark: #000000;

JSON

{
  "hex": "#100b3e",
  "rgb": {
    "r": 16,
    "g": 11,
    "b": 62
  },
  "hsl": {
    "h": 245.882,
    "s": 69.863,
    "l": 14.314
  },
  "oklch": {
    "l": 0.20008,
    "c": 0.09218,
    "h": 278.4
  },
  "luminance": 0.00697
}

Semantic roles & 50–950 ramp

primary

#100B3E

secondary

#737B2A

accent

#ED3BDB

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030108

muted

#78777B

Preview Lab

Preview with #100B3E

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

Preview Lab → · Contrast checker → · Palette generator →