#153E81#153E81

#153E81 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 37.7% C 0.122 H 259.9°. Best body text is #FFFFFF at 10.30:1 contrast (WCAG AA passes).

Color values

HEX	#153E81
RGB	rgb(21, 62, 129)
HSL	hsl(217, 72%, 29%)
HSV	hsv(217, 84%, 51%)
CMYK	cmyk(83.7%, 51.9%, 0%, 49.4%)
CIE-LAB	lab(27.27, 12.51, -41.78)
CIE-LCH	lch(27.27, 43.61, 286.68°)
OKLab	oklab(37.71% -0.0214 -0.1203)
OKLCH	oklch(37.71% 0.122 259.9)
XYZ	xyz(5.9929, 5.1889, 21.4503)
Luminance	0.0519 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153E81 #815815

analogous

#157481 #153E81 #221581

triadic

#153E81 #81153E #3E8115

tetradic

#153E81 #811574 #815815 #158122

square

#153E81 #811574 #815815 #158122

split-complementary

#153E81 #812215 #748115

monochromatic

#040D1A #0C254C #153E81 #1E57B6 #3374DE

Accessibility & contrast

On white

10.30

#153E81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#153E81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153E81

10.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153E81	#FFFFFF	#000000	##FFFFFF
##153E81	1.00	10.30	2.04	10.30
#FFFFFF	10.30	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#144683

Deuteranopia (green-blind)

#003C80

Tritanopia (blue-blind)

#004E59

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #153e81;
/* rgb */ color: rgb(21, 62, 129);
/* oklch */ color: oklch(37.7% 0.122 259.9);

Tailwind

colors: {
  custom: {
    50: '#6672a6',
    500: '#153e81',
    950: '#000000',
  },
}

SCSS

$custom: #153e81;
$custom-light: #6672a6;
$custom-dark: #000000;

JSON

{
  "hex": "#153e81",
  "rgb": {
    "r": 21,
    "g": 62,
    "b": 129
  },
  "hsl": {
    "h": 217.222,
    "s": 72,
    "l": 29.412
  },
  "oklch": {
    "l": 0.37705,
    "c": 0.12217,
    "h": 259.9
  },
  "luminance": 0.0519
}

Semantic roles & 50–950 ramp

primary

#153E81

secondary

#B6883C

accent

#AA39EF

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #153E81

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

Preview Lab → · Contrast checker → · Palette generator →