#100548#100548

#100548 is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 20.3% C 0.113 H 277.3°. Best body text is #FFFFFF at 18.46:1 contrast (WCAG AA passes).

Color values

HEX	#100548
RGB	rgb(16, 5, 72)
HSL	hsl(250, 87%, 15%)
HSV	hsv(250, 93%, 28%)
CMYK	cmyk(77.8%, 93.1%, 0%, 71.8%)
CIE-LAB	lab(6.20, 27.95, -38.61)
CIE-LCH	lch(6.20, 47.67, 305.90°)
OKLab	oklab(20.31% 0.0144 -0.1123)
OKLCH	oklch(20.31% 0.113 277.3)
XYZ	xyz(1.4373, 0.6864, 6.1864)
Luminance	0.0069 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.44

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100548 #3D4805

analogous

#051B48 #100548 #320548

triadic

#100548 #481005 #054810

tetradic

#100548 #48051B #3D4805 #054832

square

#100548 #48051B #3D4805 #054832

split-complementary

#100548 #483205 #1B4805

monochromatic

#06021D #06021D #100548 #1D0981 #290DBA

Accessibility & contrast

On white

18.46

#100548 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#100548 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100548

18.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100548	#FFFFFF	#000000	##FFFFFF
##100548	1.00	18.46	1.14	18.46
#FFFFFF	18.46	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00164A

Deuteranopia (green-blind)

#001147

Tritanopia (blue-blind)

#001A28

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #100548;
/* rgb */ color: rgb(16, 5, 72);
/* oklch */ color: oklch(20.3% 0.113 277.3);

Tailwind

colors: {
  custom: {
    50: '#59487c',
    500: '#100548',
    950: '#000000',
  },
}

SCSS

$custom: #100548;
$custom-light: #59487c;
$custom-dark: #000000;

JSON

{
  "hex": "#100548",
  "rgb": {
    "r": 16,
    "g": 5,
    "b": 72
  },
  "hsl": {
    "h": 249.851,
    "s": 87.013,
    "l": 15.098
  },
  "oklch": {
    "l": 0.20306,
    "c": 0.11322,
    "h": 277.3
  },
  "luminance": 0.00687
}

Semantic roles & 50–950 ramp

primary

#100548

secondary

#778821

accent

#FD2BDB

background

#F5F4F7

surface

#E9E6EE

border

#C5C2C9

text

#040009

muted

#79777B

Preview Lab

Preview with #100548

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

Preview Lab → · Contrast checker → · Palette generator →