#576BCB#576BCB

#576BCB is a mid, vivid blue. Relative luminance 0.169; OKLCH L 56.0% C 0.149 H 271.9°. Best body text is #FFFFFF at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#576BCB
RGB	rgb(87, 107, 203)
HSL	hsl(230, 53%, 57%)
HSV	hsv(230, 57%, 80%)
CMYK	cmyk(57.1%, 47.3%, 0%, 20.4%)
CIE-LAB	lab(48.07, 21.04, -52.30)
CIE-LCH	lch(48.07, 56.37, 291.92°)
OKLab	oklab(56.02% 0.005 -0.1492)
OKLCH	oklch(56.02% 0.149 271.9)
XYZ	xyz(19.9641, 16.8519, 58.6890)
Luminance	0.1685 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#576BCB #CBB757

analogous

#57A5CB #576BCB #7D57CB

triadic

#576BCB #CB576B #6BCB57

tetradic

#576BCB #CB57A5 #CBB757 #57CB7D

square

#576BCB #CB57A5 #CBB757 #57CB7D

split-complementary

#576BCB #CB7D57 #A5CB57

monochromatic

#283780 #364BAF #576BCB #8694D9 #B4BDE8

Accessibility & contrast

On white

4.80

#576BCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#576BCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #576BCB

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##576BCB	#FFFFFF	#000000	##FFFFFF
##576BCB	1.00	4.80	4.37	4.80
#FFFFFF	4.80	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D77CF

Deuteranopia (green-blind)

#2C6DC9

Tritanopia (blue-blind)

#058091

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #576bcb;
/* rgb */ color: rgb(87, 107, 203);
/* oklch */ color: oklch(56.0% 0.149 271.9);

Tailwind

colors: {
  custom: {
    50: '#8f95db',
    500: '#576bcb',
    950: '#000000',
  },
}

SCSS

$custom: #576bcb;
$custom-light: #8f95db;
$custom-dark: #000000;

JSON

{
  "hex": "#576bcb",
  "rgb": {
    "r": 87,
    "g": 107,
    "b": 203
  },
  "hsl": {
    "h": 229.655,
    "s": 52.727,
    "l": 56.863
  },
  "oklch": {
    "l": 0.5602,
    "c": 0.1493,
    "h": 271.9
  },
  "luminance": 0.16853
}

Semantic roles & 50–950 ramp

primary

#576BCB

secondary

#D7CEA7

accent

#C34CDC

background

#F9F9FD

surface

#F2F1FB

border

#CCCBD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #576BCB

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

Preview Lab → · Contrast checker → · Palette generator →