#153181#153181

#153181 is a dark, vivid blue. Relative luminance 0.039; OKLCH L 34.8% C 0.139 H 265.0°. Best body text is #FFFFFF at 11.74:1 contrast (WCAG AA passes).

Color values

HEX	#153181
RGB	rgb(21, 49, 129)
HSL	hsl(224, 72%, 29%)
HSV	hsv(224, 84%, 51%)
CMYK	cmyk(83.7%, 62%, 0%, 49.4%)
CIE-LAB	lab(23.47, 21.70, -47.94)
CIE-LCH	lch(23.47, 52.62, 294.35°)
OKLab	oklab(34.84% -0.0121 -0.1386)
OKLCH	oklch(34.84% 0.139 265)
XYZ	xyz(5.3686, 3.9404, 21.2422)
Luminance	0.0394 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153181 #816515

analogous

#156781 #153181 #2F1581

triadic

#153181 #811531 #318115

tetradic

#153181 #811567 #816515 #15812F

square

#153181 #811567 #816515 #15812F

split-complementary

#153181 #812F15 #678115

monochromatic

#040A1A #0C1D4C #153181 #1E45B6 #335FDE

Accessibility & contrast

On white

11.74

#153181 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#153181 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153181

11.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153181	#FFFFFF	#000000	##FFFFFF
##153181	1.00	11.74	1.79	11.74
#FFFFFF	11.74	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D84

Deuteranopia (green-blind)

#00337F

Tritanopia (blue-blind)

#004654

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #153181;
/* rgb */ color: rgb(21, 49, 129);
/* oklch */ color: oklch(34.8% 0.139 265.0);

Tailwind

colors: {
  custom: {
    50: '#6768a6',
    500: '#153181',
    950: '#000000',
  },
}

SCSS

$custom: #153181;
$custom-light: #6768a6;
$custom-dark: #000000;

JSON

{
  "hex": "#153181",
  "rgb": {
    "r": 21,
    "g": 49,
    "b": 129
  },
  "hsl": {
    "h": 224.444,
    "s": 72,
    "l": 29.412
  },
  "oklch": {
    "l": 0.34836,
    "c": 0.13917,
    "h": 265
  },
  "luminance": 0.03941
}

Semantic roles & 50–950 ramp

primary

#153181

secondary

#B6963C

accent

#C039EF

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #153181

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

Preview Lab → · Contrast checker → · Palette generator →