#153C8A#153C8A

#153C8A is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.0% C 0.138 H 262.1°. Best body text is #FFFFFF at 10.27:1 contrast (WCAG AA passes).

Color values

HEX	#153C8A
RGB	rgb(21, 60, 138)
HSL	hsl(220, 74%, 31%)
HSV	hsv(220, 85%, 54%)
CMYK	cmyk(84.8%, 56.5%, 0%, 45.9%)
CIE-LAB	lab(27.37, 17.66, -47.21)
CIE-LCH	lch(27.37, 50.41, 290.50°)
OKLab	oklab(38% -0.0188 -0.1363)
OKLCH	oklch(38% 0.138 262.1)
XYZ	xyz(6.5109, 5.2253, 24.7053)
Luminance	0.0523 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153C8A #8A6315

analogous

#15768A #153C8A #28158A

triadic

#153C8A #8A153C #3C8A15

tetradic

#153C8A #8A1576 #8A6315 #158A28

square

#153C8A #8A1576 #8A6315 #158A28

split-complementary

#153C8A #8A2815 #768A15

monochromatic

#050E20 #0D2555 #153C8A #1D53BF #3971E1

Accessibility & contrast

On white

10.27

#153C8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#153C8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153C8A

10.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153C8A	#FFFFFF	#000000	##FFFFFF
##153C8A	1.00	10.27	2.05	10.27
#FFFFFF	10.27	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00468D

Deuteranopia (green-blind)

#003C88

Tritanopia (blue-blind)

#004F5D

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #153c8a;
/* rgb */ color: rgb(21, 60, 138);
/* oklch */ color: oklch(38.0% 0.138 262.1);

Tailwind

colors: {
  custom: {
    50: '#6971ad',
    500: '#153c8a',
    950: '#000000',
  },
}

SCSS

$custom: #153c8a;
$custom-light: #6971ad;
$custom-dark: #000000;

JSON

{
  "hex": "#153c8a",
  "rgb": {
    "r": 21,
    "g": 60,
    "b": 138
  },
  "hsl": {
    "h": 220,
    "s": 73.585,
    "l": 31.176
  },
  "oklch": {
    "l": 0.38002,
    "c": 0.1376,
    "h": 262.1
  },
  "luminance": 0.05226
}

Semantic roles & 50–950 ramp

primary

#153C8A

secondary

#BE933D

accent

#B338F0

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #153C8A

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

Preview Lab → · Contrast checker → · Palette generator →