#5155AF#5155AF

#5155AF is a mid, vivid blue. Relative luminance 0.113; OKLCH L 49.4% C 0.141 H 278.0°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#5155AF
RGB	rgb(81, 85, 175)
HSL	hsl(237, 37%, 50%)
HSV	hsv(237, 54%, 69%)
CMYK	cmyk(53.7%, 51.4%, 0%, 31.4%)
CIE-LAB	lab(40.15, 24.39, -48.76)
CIE-LCH	lch(40.15, 54.52, 296.58°)
OKLab	oklab(49.36% 0.0196 -0.1392)
OKLCH	oklch(49.36% 0.141 278)
XYZ	xyz(14.3773, 11.3406, 41.9805)
Luminance	0.1134 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5155AF #AFAB51

analogous

#5184AF #5155AF #7C51AF

triadic

#5155AF #AF5155 #55AF51

tetradic

#5155AF #AF5184 #AFAB51 #51AF7C

square

#5155AF #AF5184 #AFAB51 #51AF7C

split-complementary

#5155AF #AF7C51 #84AF51

monochromatic

#2A2C5C #3D4085 #5155AF #7B7EC2 #A5A7D6

Accessibility & contrast

On white

6.43

#5155AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#5155AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5155AF

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5155AF	#FFFFFF	#000000	##FFFFFF
##5155AF	1.00	6.43	3.27	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2762B2

Deuteranopia (green-blind)

#1B5BAD

Tritanopia (blue-blind)

#26697A

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #5155af;
/* rgb */ color: rgb(81, 85, 175);
/* oklch */ color: oklch(49.4% 0.141 278.0);

Tailwind

colors: {
  custom: {
    50: '#8984c7',
    500: '#5155af',
    950: '#000000',
  },
}

SCSS

$custom: #5155af;
$custom-light: #8984c7;
$custom-dark: #000000;

JSON

{
  "hex": "#5155af",
  "rgb": {
    "r": 81,
    "g": 85,
    "b": 175
  },
  "hsl": {
    "h": 237.447,
    "s": 37.008,
    "l": 50.196
  },
  "oklch": {
    "l": 0.49359,
    "c": 0.14056,
    "h": 278
  },
  "luminance": 0.11341
}

Semantic roles & 50–950 ramp

primary

#5155AF

secondary

#C3C199

accent

#C85BCD

background

#F8F8FC

surface

#F0EFF8

border

#CBCAD1

text

#0C0B13

muted

#7D7C82

Preview Lab

Preview with #5155AF

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

Preview Lab → · Contrast checker → · Palette generator →