#153A80#153A80

#153A80 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.7% C 0.126 H 261.6°. Best body text is #FFFFFF at 10.78:1 contrast (WCAG AA passes).

Color values

HEX	#153A80
RGB	rgb(21, 58, 128)
HSL	hsl(219, 72%, 29%)
HSV	hsv(219, 84%, 50%)
CMYK	cmyk(83.6%, 54.7%, 0%, 49.8%)
CIE-LAB	lab(25.99, 14.91, -43.21)
CIE-LCH	lch(25.99, 45.72, 289.04°)
OKLab	oklab(36.71% -0.0184 -0.1246)
OKLCH	oklch(36.71% 0.126 261.6)
XYZ	xyz(5.7172, 4.7434, 21.0321)
Luminance	0.0474 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153A80 #805B15

analogous

#157080 #153A80 #251580

triadic

#153A80 #80153A #3A8015

tetradic

#153A80 #801570 #805B15 #158025

square

#153A80 #801570 #805B15 #158025

split-complementary

#153A80 #802515 #708015

monochromatic

#040C1A #0C224B #153A80 #1E52B5 #326DDD

Accessibility & contrast

On white

10.78

#153A80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#153A80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153A80

10.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153A80	#FFFFFF	#000000	##FFFFFF
##153A80	1.00	10.78	1.95	10.78
#FFFFFF	10.78	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#054382

Deuteranopia (green-blind)

#00397F

Tritanopia (blue-blind)

#004B57

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #153a80;
/* rgb */ color: rgb(21, 58, 128);
/* oklch */ color: oklch(36.7% 0.126 261.6);

Tailwind

colors: {
  custom: {
    50: '#666fa5',
    500: '#153a80',
    950: '#000000',
  },
}

SCSS

$custom: #153a80;
$custom-light: #666fa5;
$custom-dark: #000000;

JSON

{
  "hex": "#153a80",
  "rgb": {
    "r": 21,
    "g": 58,
    "b": 128
  },
  "hsl": {
    "h": 219.252,
    "s": 71.812,
    "l": 29.216
  },
  "oklch": {
    "l": 0.36708,
    "c": 0.12594,
    "h": 261.6
  },
  "luminance": 0.04744
}

Semantic roles & 50–950 ramp

primary

#153A80

secondary

#B58B3C

accent

#B039EF

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #153A80

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

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