#10218D#10218D

#10218D is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.0% C 0.175 H 266.9°. Best body text is #FFFFFF at 12.93:1 contrast (WCAG AA passes).

Color values

HEX	#10218D
RGB	rgb(16, 33, 141)
HSL	hsl(232, 80%, 31%)
HSV	hsv(232, 89%, 55%)
CMYK	cmyk(88.7%, 76.6%, 0%, 44.7%)
CIE-LAB	lab(20.52, 36.73, -60.32)
CIE-LCH	lch(20.52, 70.62, 301.34°)
OKLab	oklab(33% -0.0096 -0.1749)
OKLCH	oklch(33% 0.175 266.9)
XYZ	xyz(5.5636, 3.1203, 25.5032)
Luminance	0.0312 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10218D #8D7C10

analogous

#105F8D #10218D #3D108D

triadic

#10218D #8D1021 #218D10

tetradic

#10218D #8D105F #8D7C10 #108D3D

square

#10218D #8D105F #8D7C10 #108D3D

split-complementary

#10218D #8D3D10 #5F8D10

monochromatic

#04071F #0A1456 #10218D #162EC4 #3049E7

Accessibility & contrast

On white

12.93

#10218D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#10218D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10218D

12.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10218D	#FFFFFF	#000000	##FFFFFF
##10218D	1.00	12.93	1.62	12.93
#FFFFFF	12.93	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003890

Deuteranopia (green-blind)

#002B8B

Tritanopia (blue-blind)

#004155

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #10218d;
/* rgb */ color: rgb(16, 33, 141);
/* oklch */ color: oklch(33.0% 0.175 266.9);

Tailwind

colors: {
  custom: {
    50: '#6b5db0',
    500: '#10218d',
    950: '#000000',
  },
}

SCSS

$custom: #10218d;
$custom-light: #6b5db0;
$custom-dark: #000000;

JSON

{
  "hex": "#10218d",
  "rgb": {
    "r": 16,
    "g": 33,
    "b": 141
  },
  "hsl": {
    "h": 231.84,
    "s": 79.618,
    "l": 30.784
  },
  "oklch": {
    "l": 0.32998,
    "c": 0.17516,
    "h": 266.9
  },
  "luminance": 0.03121
}

Semantic roles & 50–950 ramp

primary

#10218D

secondary

#C2AF37

accent

#DB32F6

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#080411

muted

#7B7980

Preview Lab

Preview with #10218D

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

Preview Lab → · Contrast checker → · Palette generator →