#153F83#153F83

#153F83 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.1% C 0.124 H 259.8°. Best body text is #FFFFFF at 10.14:1 contrast (WCAG AA passes).

Color values

HEX	#153F83
RGB	rgb(21, 63, 131)
HSL	hsl(217, 72%, 30%)
HSV	hsv(217, 84%, 51%)
CMYK	cmyk(84%, 51.9%, 0%, 48.6%)
CIE-LAB	lab(27.72, 12.65, -42.30)
CIE-LCH	lch(27.72, 44.15, 286.65°)
OKLab	oklab(38.1% -0.0219 -0.1218)
OKLCH	oklch(38.1% 0.124 259.8)
XYZ	xyz(6.1820, 5.3524, 22.1756)
Luminance	0.0535 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153F83 #835915

analogous

#157683 #153F83 #221583

triadic

#153F83 #83153F #3F8315

tetradic

#153F83 #831576 #835915 #158322

square

#153F83 #831576 #835915 #158322

split-complementary

#153F83 #832215 #768315

monochromatic

#040D1A #0D264E #153F83 #1D58B8 #3475DE

Accessibility & contrast

On white

10.14

#153F83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#153F83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153F83

10.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153F83	#FFFFFF	#000000	##FFFFFF
##153F83	1.00	10.14	2.07	10.14
#FFFFFF	10.14	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#144785

Deuteranopia (green-blind)

#003D82

Tritanopia (blue-blind)

#004F5A

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #153f83;
/* rgb */ color: rgb(21, 63, 131);
/* oklch */ color: oklch(38.1% 0.124 259.8);

Tailwind

colors: {
  custom: {
    50: '#6773a8',
    500: '#153f83',
    950: '#000000',
  },
}

SCSS

$custom: #153f83;
$custom-light: #6773a8;
$custom-dark: #000000;

JSON

{
  "hex": "#153f83",
  "rgb": {
    "r": 21,
    "g": 63,
    "b": 131
  },
  "hsl": {
    "h": 217.091,
    "s": 72.368,
    "l": 29.804
  },
  "oklch": {
    "l": 0.38097,
    "c": 0.12374,
    "h": 259.8
  },
  "luminance": 0.05353
}

Semantic roles & 50–950 ramp

primary

#153F83

secondary

#B8883C

accent

#A939EF

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #153F83

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

Preview Lab → · Contrast checker → · Palette generator →