#576BBB#576BBB

#576BBB is a mid, vivid blue. Relative luminance 0.161; OKLCH L 55.0% C 0.127 H 271.2°. Best body text is #FFFFFF at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#576BBB
RGB	rgb(87, 107, 187)
HSL	hsl(228, 42%, 54%)
HSV	hsv(228, 53%, 73%)
CMYK	cmyk(53.5%, 42.8%, 0%, 26.7%)
CIE-LAB	lab(47.14, 15.79, -44.57)
CIE-LCH	lch(47.14, 47.28, 289.51°)
OKLab	oklab(55.01% 0.0026 -0.1265)
OKLCH	oklch(55.01% 0.127 271.2)
XYZ	xyz(18.1549, 16.1282, 49.1605)
Luminance	0.1613 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#576BBB #BBA757

analogous

#579DBB #576BBB #7557BB

triadic

#576BBB #BB576B #6BBB57

tetradic

#576BBB #BB579D #BBA757 #57BB75

square

#576BBB #BB579D #BBA757 #57BB75

split-complementary

#576BBB #BB7557 #9DBB57

monochromatic

#2C396C #3D4F97 #576BBB #8391CD #AEB8DE

Accessibility & contrast

On white

4.97

#576BBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.23

#576BBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #576BBB

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##576BBB	#FFFFFF	#000000	##FFFFFF
##576BBB	1.00	4.97	4.23	4.97
#FFFFFF	4.97	1.00	21.00	1.00
#000000	4.23	21.00	1.00	21.00
##FFFFFF	4.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4974BE

Deuteranopia (green-blind)

#3E6CB9

Tritanopia (blue-blind)

#267C8A

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #576bbb;
/* rgb */ color: rgb(87, 107, 187);
/* oklch */ color: oklch(55.0% 0.127 271.2);

Tailwind

colors: {
  custom: {
    50: '#8d95d0',
    500: '#576bbb',
    950: '#000000',
  },
}

SCSS

$custom: #576bbb;
$custom-light: #8d95d0;
$custom-dark: #000000;

JSON

{
  "hex": "#576bbb",
  "rgb": {
    "r": 87,
    "g": 107,
    "b": 187
  },
  "hsl": {
    "h": 228,
    "s": 42.373,
    "l": 53.725
  },
  "oklch": {
    "l": 0.55009,
    "c": 0.12657,
    "h": 271.2
  },
  "luminance": 0.16129
}

Semantic roles & 50–950 ramp

primary

#576BBB

secondary

#CCC4A2

accent

#B956D2

background

#F9F9FC

surface

#F1F1F9

border

#CBCBD2

text

#0D0D14

muted

#7E7E82

Preview Lab

Preview with #576BBB

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

Preview Lab → · Contrast checker → · Palette generator →