#153F80#153F80

#153F80 is a dark, moderate blue. Relative luminance 0.053; OKLCH L 37.9% C 0.119 H 259.2°. Best body text is #FFFFFF at 10.22:1 contrast (WCAG AA passes).

Color values

HEX	#153F80
RGB	rgb(21, 63, 128)
HSL	hsl(216, 72%, 29%)
HSV	hsv(216, 84%, 50%)
CMYK	cmyk(83.6%, 50.8%, 0%, 49.8%)
CIE-LAB	lab(27.50, 11.40, -40.78)
CIE-LCH	lch(27.50, 42.34, 285.61°)
OKLab	oklab(37.86% -0.0223 -0.1173)
OKLCH	oklch(37.86% 0.119 259.2)
XYZ	xyz(5.9816, 5.2722, 21.1203)
Luminance	0.0527 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153F80 #805615

analogous

#157580 #153F80 #211580

triadic

#153F80 #80153F #3F8015

tetradic

#153F80 #801575 #805615 #158021

square

#153F80 #801575 #805615 #158021

split-complementary

#153F80 #802115 #758015

monochromatic

#040D1A #0C254B #153F80 #1E59B5 #3275DD

Accessibility & contrast

On white

10.22

#153F80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#153F80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153F80

10.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153F80	#FFFFFF	#000000	##FFFFFF
##153F80	1.00	10.22	2.05	10.22
#FFFFFF	10.22	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#184682

Deuteranopia (green-blind)

#003C7F

Tritanopia (blue-blind)

#004F59

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #153f80;
/* rgb */ color: rgb(21, 63, 128);
/* oklch */ color: oklch(37.9% 0.119 259.2);

Tailwind

colors: {
  custom: {
    50: '#6673a5',
    500: '#153f80',
    950: '#000000',
  },
}

SCSS

$custom: #153f80;
$custom-light: #6673a5;
$custom-dark: #000000;

JSON

{
  "hex": "#153f80",
  "rgb": {
    "r": 21,
    "g": 63,
    "b": 128
  },
  "hsl": {
    "h": 216.449,
    "s": 71.812,
    "l": 29.216
  },
  "oklch": {
    "l": 0.37858,
    "c": 0.11943,
    "h": 259.2
  },
  "luminance": 0.05273
}

Semantic roles & 50–950 ramp

primary

#153F80

secondary

#B5853C

accent

#A739EF

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #153F80

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

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