#153E8C#153E8C

#153E8C is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.6% C 0.138 H 261.6°. Best body text is #FFFFFF at 10.00:1 contrast (WCAG AA passes).

Color values

HEX	#153E8C
RGB	rgb(21, 62, 140)
HSL	hsl(219, 74%, 32%)
HSV	hsv(219, 85%, 55%)
CMYK	cmyk(85%, 55.7%, 0%, 45.1%)
CIE-LAB	lab(28.11, 17.08, -47.25)
CIE-LCH	lch(28.11, 50.24, 289.88°)
OKLab	oklab(38.61% -0.02 -0.1364)
OKLCH	oklch(38.61% 0.138 261.6)
XYZ	xyz(6.7638, 5.4973, 25.5105)
Luminance	0.0550 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153E8C #8C6315

analogous

#157A8C #153E8C #28158C

triadic

#153E8C #8C153E #3E8C15

tetradic

#153E8C #8C157A #8C6315 #158C28

square

#153E8C #8C157A #8C6315 #158C28

split-complementary

#153E8C #8C2815 #7A8C15

monochromatic

#050F22 #0D2657 #153E8C #1D56C1 #3A74E1

Accessibility & contrast

On white

10.00

#153E8C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#153E8C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153E8C

10.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153E8C	#FFFFFF	#000000	##FFFFFF
##153E8C	1.00	10.00	2.10	10.00
#FFFFFF	10.00	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00488F

Deuteranopia (green-blind)

#003D8A

Tritanopia (blue-blind)

#00515E

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #153e8c;
/* rgb */ color: rgb(21, 62, 140);
/* oklch */ color: oklch(38.6% 0.138 261.6);

Tailwind

colors: {
  custom: {
    50: '#6972ae',
    500: '#153e8c',
    950: '#000000',
  },
}

SCSS

$custom: #153e8c;
$custom-light: #6972ae;
$custom-dark: #000000;

JSON

{
  "hex": "#153e8c",
  "rgb": {
    "r": 21,
    "g": 62,
    "b": 140
  },
  "hsl": {
    "h": 219.328,
    "s": 73.913,
    "l": 31.569
  },
  "oklch": {
    "l": 0.38612,
    "c": 0.13784,
    "h": 261.6
  },
  "luminance": 0.05498
}

Semantic roles & 50–950 ramp

primary

#153E8C

secondary

#C0933D

accent

#B137F1

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #153E8C

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

Preview Lab → · Contrast checker → · Palette generator →