#100C3E#100C3E

#100C3E is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 20.2% C 0.091 H 278.0°. Best body text is #FFFFFF at 18.35:1 contrast (WCAG AA passes).

Color values

HEX	#100C3E
RGB	rgb(16, 12, 62)
HSL	hsl(245, 68%, 15%)
HSV	hsv(245, 81%, 24%)
CMYK	cmyk(74.2%, 80.6%, 0%, 75.7%)
CIE-LAB	lab(6.51, 19.86, -31.00)
CIE-LCH	lch(6.51, 36.82, 302.64°)
OKLab	oklab(20.18% 0.0127 -0.09)
OKLCH	oklch(20.18% 0.091 278)
XYZ	xyz(1.2144, 0.7208, 4.6316)
Luminance	0.0072 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100C3E #3A3E0C

analogous

#0C213E #100C3E #290C3E

triadic

#100C3E #3E100C #0C3E10

tetradic

#100C3E #3E0C21 #3A3E0C #0C3E29

square

#100C3E #3E0C21 #3A3E0C #0C3E29

split-complementary

#100C3E #3E290C #213E0C

monochromatic

#07051A #07051A #100C3E #1D1671 #2A20A5

Accessibility & contrast

On white

18.35

#100C3E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#100C3E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100C3E

18.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100C3E	#FFFFFF	#000000	##FFFFFF
##100C3E	1.00	18.35	1.14	18.35
#FFFFFF	18.35	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00163F

Deuteranopia (green-blind)

#00123D

Tritanopia (blue-blind)

#001A23

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #100c3e;
/* rgb */ color: rgb(16, 12, 62);
/* oklch */ color: oklch(20.2% 0.091 278.0);

Tailwind

colors: {
  custom: {
    50: '#564b74',
    500: '#100c3e',
    950: '#000000',
  },
}

SCSS

$custom: #100c3e;
$custom-light: #564b74;
$custom-dark: #000000;

JSON

{
  "hex": "#100c3e",
  "rgb": {
    "r": 16,
    "g": 12,
    "b": 62
  },
  "hsl": {
    "h": 244.8,
    "s": 67.568,
    "l": 14.51
  },
  "oklch": {
    "l": 0.20184,
    "c": 0.0909,
    "h": 278
  },
  "luminance": 0.00721
}

Semantic roles & 50–950 ramp

primary

#100C3E

secondary

#747A2C

accent

#EA3DDD

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030108

muted

#78777B

Preview Lab

Preview with #100C3E

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

Preview Lab → · Contrast checker → · Palette generator →