#10155D#10155D

#10155D is a dark, vivid blue. Relative luminance 0.014; OKLCH L 25.4% C 0.125 H 270.6°. Best body text is #FFFFFF at 16.31:1 contrast (WCAG AA passes).

Color values

HEX	#10155D
RGB	rgb(16, 21, 93)
HSL	hsl(236, 71%, 21%)
HSV	hsv(236, 83%, 36%)
CMYK	cmyk(82.8%, 77.4%, 0%, 63.5%)
CIE-LAB	lab(12.20, 26.29, -43.10)
CIE-LCH	lch(12.20, 50.49, 301.39°)
OKLab	oklab(25.4% 0.0013 -0.1248)
OKLCH	oklch(25.4% 0.125 270.6)
XYZ	xyz(2.4570, 1.4365, 10.5016)
Luminance	0.0144 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10155D #5D5810

analogous

#103C5D #10155D #32105D

triadic

#10155D #5D1015 #155D10

tetradic

#10155D #5D103C #5D5810 #105D32

square

#10155D #5D103C #5D5810 #105D32

split-complementary

#10155D #5D3210 #3C5D10

monochromatic

#04061A #070929 #10155D #192191 #222DC5

Accessibility & contrast

On white

16.31

#10155D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#10155D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10155D

16.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10155D	#FFFFFF	#000000	##FFFFFF
##10155D	1.00	16.31	1.29	16.31
#FFFFFF	16.31	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00245F

Deuteranopia (green-blind)

#001C5C

Tritanopia (blue-blind)

#002A37

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #10155d;
/* rgb */ color: rgb(16, 21, 93);
/* oklch */ color: oklch(25.4% 0.125 270.6);

Tailwind

colors: {
  custom: {
    50: '#5e538c',
    500: '#10155d',
    950: '#000000',
  },
}

SCSS

$custom: #10155d;
$custom-light: #5e538c;
$custom-dark: #000000;

JSON

{
  "hex": "#10155d",
  "rgb": {
    "r": 16,
    "g": 21,
    "b": 93
  },
  "hsl": {
    "h": 236.104,
    "s": 70.642,
    "l": 21.373
  },
  "oklch": {
    "l": 0.25403,
    "c": 0.12482,
    "h": 270.6
  },
  "luminance": 0.01437
}

Semantic roles & 50–950 ramp

primary

#10155D

secondary

#969033

accent

#E23AED

background

#F5F4F8

surface

#EAE7F0

border

#C6C3CB

text

#05020C

muted

#79787D

Preview Lab

Preview with #10155D

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

Preview Lab → · Contrast checker → · Palette generator →