#153C81#153C81

#153C81 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.2% C 0.125 H 260.9°. Best body text is #FFFFFF at 10.53:1 contrast (WCAG AA passes).

Color values

HEX	#153C81
RGB	rgb(21, 60, 129)
HSL	hsl(218, 72%, 29%)
HSV	hsv(218, 84%, 51%)
CMYK	cmyk(83.7%, 53.5%, 0%, 49.4%)
CIE-LAB	lab(26.66, 13.92, -42.75)
CIE-LCH	lch(26.66, 44.96, 288.04°)
OKLab	oklab(37.24% -0.0198 -0.1232)
OKLCH	oklch(37.24% 0.125 260.9)
XYZ	xyz(5.8861, 4.9754, 21.4147)
Luminance	0.0498 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153C81 #815A15

analogous

#157281 #153C81 #241581

triadic

#153C81 #81153C #3C8115

tetradic

#153C81 #811572 #815A15 #158124

square

#153C81 #811572 #815A15 #158124

split-complementary

#153C81 #812415 #728115

monochromatic

#040C1A #0C244C #153C81 #1E54B6 #3370DE

Accessibility & contrast

On white

10.53

#153C81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#153C81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153C81

10.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153C81	#FFFFFF	#000000	##FFFFFF
##153C81	1.00	10.53	2.00	10.53
#FFFFFF	10.53	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C4483

Deuteranopia (green-blind)

#003A80

Tritanopia (blue-blind)

#004D58

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #153c81;
/* rgb */ color: rgb(21, 60, 129);
/* oklch */ color: oklch(37.2% 0.125 260.9);

Tailwind

colors: {
  custom: {
    50: '#6671a6',
    500: '#153c81',
    950: '#000000',
  },
}

SCSS

$custom: #153c81;
$custom-light: #6671a6;
$custom-dark: #000000;

JSON

{
  "hex": "#153c81",
  "rgb": {
    "r": 21,
    "g": 60,
    "b": 129
  },
  "hsl": {
    "h": 218.333,
    "s": 72,
    "l": 29.412
  },
  "oklch": {
    "l": 0.37245,
    "c": 0.12476,
    "h": 260.9
  },
  "luminance": 0.04976
}

Semantic roles & 50–950 ramp

primary

#153C81

secondary

#B68A3C

accent

#AD39EF

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #153C81

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

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