#153D8E#153D8E

#153D8E is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.6% C 0.142 H 262.2°. Best body text is #FFFFFF at 10.05:1 contrast (WCAG AA passes).

Color values

HEX	#153D8E
RGB	rgb(21, 61, 142)
HSL	hsl(220, 74%, 32%)
HSV	hsv(220, 85%, 56%)
CMYK	cmyk(85.2%, 57%, 0%, 44.3%)
CIE-LAB	lab(27.98, 18.60, -48.69)
CIE-LCH	lch(27.98, 52.13, 290.91°)
OKLab	oklab(38.57% -0.0192 -0.1406)
OKLCH	oklch(38.57% 0.142 262.2)
XYZ	xyz(6.8587, 5.4491, 26.2762)
Luminance	0.0545 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153D8E #8E6615

analogous

#157A8E #153D8E #29158E

triadic

#153D8E #8E153D #3D8E15

tetradic

#153D8E #8E157A #8E6615 #158E29

square

#153D8E #8E157A #8E6615 #158E29

split-complementary

#153D8E #8E2915 #7A8E15

monochromatic

#050F23 #0D2659 #153D8E #1D54C3 #3B72E2

Accessibility & contrast

On white

10.05

#153D8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#153D8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153D8E

10.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153D8E	#FFFFFF	#000000	##FFFFFF
##153D8E	1.00	10.05	2.09	10.05
#FFFFFF	10.05	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004891

Deuteranopia (green-blind)

#003D8C

Tritanopia (blue-blind)

#00515F

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #153d8e;
/* rgb */ color: rgb(21, 61, 142);
/* oklch */ color: oklch(38.6% 0.142 262.2);

Tailwind

colors: {
  custom: {
    50: '#6a71b0',
    500: '#153d8e',
    950: '#000000',
  },
}

SCSS

$custom: #153d8e;
$custom-light: #6a71b0;
$custom-dark: #000000;

JSON

{
  "hex": "#153d8e",
  "rgb": {
    "r": 21,
    "g": 61,
    "b": 142
  },
  "hsl": {
    "h": 220.165,
    "s": 74.233,
    "l": 31.961
  },
  "oklch": {
    "l": 0.38565,
    "c": 0.14194,
    "h": 262.2
  },
  "luminance": 0.0545
}

Semantic roles & 50–950 ramp

primary

#153D8E

secondary

#C2963D

accent

#B337F1

background

#F6F6FA

surface

#ECECF5

border

#C7C7CF

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #153D8E

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

Preview Lab → · Contrast checker → · Palette generator →