#10228D#10228D

#10228D is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.2% C 0.174 H 266.8°. Best body text is #FFFFFF at 12.84:1 contrast (WCAG AA passes).

Color values

HEX	#10228D
RGB	rgb(16, 34, 141)
HSL	hsl(231, 80%, 31%)
HSV	hsv(231, 89%, 55%)
CMYK	cmyk(88.7%, 75.9%, 0%, 44.7%)
CIE-LAB	lab(20.74, 36.11, -59.96)
CIE-LCH	lch(20.74, 69.99, 301.06°)
OKLab	oklab(33.15% -0.0098 -0.1739)
OKLCH	oklch(33.15% 0.174 266.8)
XYZ	xyz(5.5918, 3.1766, 25.5126)
Luminance	0.0318 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10228D #8D7B10

analogous

#10608D #10228D #3C108D

triadic

#10228D #8D1022 #228D10

tetradic

#10228D #8D1060 #8D7B10 #108D3C

square

#10228D #8D1060 #8D7B10 #108D3C

split-complementary

#10228D #8D3C10 #608D10

monochromatic

#04071F #0A1556 #10228D #162FC4 #304AE7

Accessibility & contrast

On white

12.84

#10228D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#10228D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10228D

12.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10228D	#FFFFFF	#000000	##FFFFFF
##10228D	1.00	12.84	1.64	12.84
#FFFFFF	12.84	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003890

Deuteranopia (green-blind)

#002C8B

Tritanopia (blue-blind)

#004256

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #10228d;
/* rgb */ color: rgb(16, 34, 141);
/* oklch */ color: oklch(33.2% 0.174 266.8);

Tailwind

colors: {
  custom: {
    50: '#6b5eb0',
    500: '#10228d',
    950: '#000000',
  },
}

SCSS

$custom: #10228d;
$custom-light: #6b5eb0;
$custom-dark: #000000;

JSON

{
  "hex": "#10228d",
  "rgb": {
    "r": 16,
    "g": 34,
    "b": 141
  },
  "hsl": {
    "h": 231.36,
    "s": 79.618,
    "l": 30.784
  },
  "oklch": {
    "l": 0.33154,
    "c": 0.17414,
    "h": 266.8
  },
  "luminance": 0.03177
}

Semantic roles & 50–950 ramp

primary

#10228D

secondary

#C2AE37

accent

#DA32F6

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#080411

muted

#7B7980

Preview Lab

Preview with #10228D

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

Preview Lab → · Contrast checker → · Palette generator →