#576FBB#576FBB

#576FBB is a mid, vivid blue. Relative luminance 0.170; OKLCH L 55.8% C 0.121 H 269.0°. Best body text is #FFFFFF at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#576FBB
RGB	rgb(87, 111, 187)
HSL	hsl(226, 42%, 54%)
HSV	hsv(226, 53%, 73%)
CMYK	cmyk(53.5%, 40.6%, 0%, 26.7%)
CIE-LAB	lab(48.24, 13.31, -42.83)
CIE-LCH	lch(48.24, 44.85, 287.26°)
OKLab	oklab(55.85% -0.0021 -0.1214)
OKLCH	oklch(55.85% 0.121 269)
XYZ	xyz(18.5816, 16.9817, 49.3027)
Luminance	0.1698 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#576FBB #BBA357

analogous

#57A1BB #576FBB #7157BB

triadic

#576FBB #BB576F #6FBB57

tetradic

#576FBB #BB57A1 #BBA357 #57BB71

square

#576FBB #BB57A1 #BBA357 #57BB71

split-complementary

#576FBB #BB7157 #A1BB57

monochromatic

#2C3B6C #3D5397 #576FBB #8394CD #AEBADE

Accessibility & contrast

On white

4.78

#576FBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#576FBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #576FBB

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##576FBB	#FFFFFF	#000000	##FFFFFF
##576FBB	1.00	4.78	4.40	4.78
#FFFFFF	4.78	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5077BE

Deuteranopia (green-blind)

#446EB9

Tritanopia (blue-blind)

#257F8C

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #576fbb;
/* rgb */ color: rgb(87, 111, 187);
/* oklch */ color: oklch(55.8% 0.121 269.0);

Tailwind

colors: {
  custom: {
    50: '#8d98d0',
    500: '#576fbb',
    950: '#000000',
  },
}

SCSS

$custom: #576fbb;
$custom-light: #8d98d0;
$custom-dark: #000000;

JSON

{
  "hex": "#576fbb",
  "rgb": {
    "r": 87,
    "g": 111,
    "b": 187
  },
  "hsl": {
    "h": 225.6,
    "s": 42.373,
    "l": 53.725
  },
  "oklch": {
    "l": 0.55849,
    "c": 0.12143,
    "h": 269
  },
  "luminance": 0.16983
}

Semantic roles & 50–950 ramp

primary

#576FBB

secondary

#CCC2A2

accent

#B456D2

background

#F9F9FC

surface

#F1F2F9

border

#CBCCD2

text

#0D0D14

muted

#7E7E82

Preview Lab

Preview with #576FBB

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

Preview Lab → · Contrast checker → · Palette generator →