#153A88#153A88

#153A88 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.4% C 0.137 H 262.6°. Best body text is #FFFFFF at 10.54:1 contrast (WCAG AA passes).

Color values

HEX	#153A88
RGB	rgb(21, 58, 136)
HSL	hsl(221, 73%, 31%)
HSV	hsv(221, 85%, 53%)
CMYK	cmyk(84.6%, 57.4%, 0%, 46.7%)
CIE-LAB	lab(26.63, 18.23, -47.18)
CIE-LCH	lch(26.63, 50.58, 291.13°)
OKLab	oklab(37.39% -0.0176 -0.1362)
OKLCH	oklch(37.39% 0.137 262.6)
XYZ	xyz(6.2647, 4.9624, 23.9154)
Luminance	0.0496 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153A88 #886315

analogous

#157388 #153A88 #2A1588

triadic

#153A88 #88153A #3A8815

tetradic

#153A88 #881573 #886315 #15882A

square

#153A88 #881573 #886315 #15882A

split-complementary

#153A88 #882A15 #738815

monochromatic

#050D1E #0D2353 #153A88 #1D51BD #376EE0

Accessibility & contrast

On white

10.54

#153A88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#153A88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153A88

10.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153A88	#FFFFFF	#000000	##FFFFFF
##153A88	1.00	10.54	1.99	10.54
#FFFFFF	10.54	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00448B

Deuteranopia (green-blind)

#003A86

Tritanopia (blue-blind)

#004D5B

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #153a88;
/* rgb */ color: rgb(21, 58, 136);
/* oklch */ color: oklch(37.4% 0.137 262.6);

Tailwind

colors: {
  custom: {
    50: '#686fab',
    500: '#153a88',
    950: '#000000',
  },
}

SCSS

$custom: #153a88;
$custom-light: #686fab;
$custom-dark: #000000;

JSON

{
  "hex": "#153a88",
  "rgb": {
    "r": 21,
    "g": 58,
    "b": 136
  },
  "hsl": {
    "h": 220.696,
    "s": 73.248,
    "l": 30.784
  },
  "oklch": {
    "l": 0.37391,
    "c": 0.13738,
    "h": 262.6
  },
  "luminance": 0.04963
}

Semantic roles & 50–950 ramp

primary

#153A88

secondary

#BC933D

accent

#B538F0

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #153A88

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

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