#153D8A#153D8A

#153D8A is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.2% C 0.136 H 261.8°. Best body text is #FFFFFF at 10.16:1 contrast (WCAG AA passes).

Color values

HEX	#153D8A
RGB	rgb(21, 61, 138)
HSL	hsl(219, 74%, 31%)
HSV	hsv(219, 85%, 54%)
CMYK	cmyk(84.8%, 55.8%, 0%, 45.9%)
CIE-LAB	lab(27.66, 16.96, -46.74)
CIE-LCH	lch(27.66, 49.72, 289.94°)
OKLab	oklab(38.22% -0.0195 -0.1349)
OKLCH	oklch(38.22% 0.136 261.8)
XYZ	xyz(6.5638, 5.3311, 24.7229)
Luminance	0.0533 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153D8A #8A6215

analogous

#15778A #153D8A #27158A

triadic

#153D8A #8A153D #3D8A15

tetradic

#153D8A #8A1577 #8A6215 #158A27

square

#153D8A #8A1577 #8A6215 #158A27

split-complementary

#153D8A #8A2715 #778A15

monochromatic

#050E20 #0D2655 #153D8A #1D54BF #3972E1

Accessibility & contrast

On white

10.16

#153D8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#153D8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153D8A

10.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153D8A	#FFFFFF	#000000	##FFFFFF
##153D8A	1.00	10.16	2.07	10.16
#FFFFFF	10.16	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00478D

Deuteranopia (green-blind)

#003C88

Tritanopia (blue-blind)

#00505D

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #153d8a;
/* rgb */ color: rgb(21, 61, 138);
/* oklch */ color: oklch(38.2% 0.136 261.8);

Tailwind

colors: {
  custom: {
    50: '#6971ad',
    500: '#153d8a',
    950: '#000000',
  },
}

SCSS

$custom: #153d8a;
$custom-light: #6971ad;
$custom-dark: #000000;

JSON

{
  "hex": "#153d8a",
  "rgb": {
    "r": 21,
    "g": 61,
    "b": 138
  },
  "hsl": {
    "h": 219.487,
    "s": 73.585,
    "l": 31.176
  },
  "oklch": {
    "l": 0.38222,
    "c": 0.13631,
    "h": 261.8
  },
  "luminance": 0.05332
}

Semantic roles & 50–950 ramp

primary

#153D8A

secondary

#BE923D

accent

#B138F0

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #153D8A

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

Preview Lab → · Contrast checker → · Palette generator →