#100E57#100E57

#100E57 is a very dark, vivid blue. Relative luminance 0.011; OKLCH L 23.6% C 0.124 H 272.6°. Best body text is #FFFFFF at 17.18:1 contrast (WCAG AA passes).

Color values

HEX	#100E57
RGB	rgb(16, 14, 87)
HSL	hsl(242, 72%, 20%)
HSV	hsv(242, 84%, 34%)
CMYK	cmyk(81.6%, 83.9%, 0%, 65.9%)
CIE-LAB	lab(9.89, 28.48, -42.86)
CIE-LCH	lch(9.89, 51.46, 303.60°)
OKLab	oklab(23.55% 0.0057 -0.124)
OKLCH	oklch(23.55% 0.124 272.6)
XYZ	xyz(2.0904, 1.1121, 9.1195)
Luminance	0.0111 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100E57 #55570E

analogous

#0E3057 #100E57 #350E57

triadic

#100E57 #57100E #0E5710

tetradic

#100E57 #570E30 #55570E #0E5735

square

#100E57 #570E30 #55570E #0E5735

split-complementary

#100E57 #57350E #30570E

monochromatic

#05041A #060622 #100E57 #1A168C #231FC0

Accessibility & contrast

On white

17.18

#100E57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#100E57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100E57

17.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100E57	#FFFFFF	#000000	##FFFFFF
##100E57	1.00	17.18	1.22	17.18
#FFFFFF	17.18	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001F59

Deuteranopia (green-blind)

#001856

Tritanopia (blue-blind)

#002432

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #100e57;
/* rgb */ color: rgb(16, 14, 87);
/* oklch */ color: oklch(23.6% 0.124 272.6);

Tailwind

colors: {
  custom: {
    50: '#5d4e87',
    500: '#100e57',
    950: '#000000',
  },
}

SCSS

$custom: #100e57;
$custom-light: #5d4e87;
$custom-dark: #000000;

JSON

{
  "hex": "#100e57",
  "rgb": {
    "r": 16,
    "g": 14,
    "b": 87
  },
  "hsl": {
    "h": 241.644,
    "s": 72.277,
    "l": 19.804
  },
  "oklch": {
    "l": 0.23553,
    "c": 0.12418,
    "h": 272.6
  },
  "luminance": 0.01112
}

Semantic roles & 50–950 ramp

primary

#100E57

secondary

#8F9130

accent

#EF39EA

background

#F5F4F8

surface

#EAE7F0

border

#C6C3CB

text

#05010B

muted

#79777C

Preview Lab

Preview with #100E57

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

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