#575BBB#575BBB

#575BBB is a mid, vivid blue. Relative luminance 0.131; OKLCH L 51.8% C 0.148 H 278.1°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#575BBB
RGB	rgb(87, 91, 187)
HSL	hsl(238, 42%, 54%)
HSV	hsv(238, 53%, 73%)
CMYK	cmyk(53.5%, 51.3%, 0%, 26.7%)
CIE-LAB	lab(42.91, 25.79, -51.34)
CIE-LCH	lch(42.91, 57.46, 296.68°)
OKLab	oklab(51.79% 0.0208 -0.1466)
OKLCH	oklch(51.79% 0.148 278.1)
XYZ	xyz(16.6384, 13.0952, 48.6550)
Luminance	0.1310 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#575BBB #BBB757

analogous

#578DBB #575BBB #8557BB

triadic

#575BBB #BB575B #5BBB57

tetradic

#575BBB #BB578D #BBB757 #57BB85

square

#575BBB #BB578D #BBB757 #57BB85

split-complementary

#575BBB #BB8557 #8DBB57

monochromatic

#2C2E6C #3D4197 #575BBB #8386CD #AEB0DE

Accessibility & contrast

On white

5.80

#575BBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#575BBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #575BBB

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##575BBB	#FFFFFF	#000000	##FFFFFF
##575BBB	1.00	5.80	3.62	5.80
#FFFFFF	5.80	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A69BE

Deuteranopia (green-blind)

#1C61B9

Tritanopia (blue-blind)

#2A7082

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #575bbb;
/* rgb */ color: rgb(87, 91, 187);
/* oklch */ color: oklch(51.8% 0.148 278.1);

Tailwind

colors: {
  custom: {
    50: '#8e89d0',
    500: '#575bbb',
    950: '#000000',
  },
}

SCSS

$custom: #575bbb;
$custom-light: #8e89d0;
$custom-dark: #000000;

JSON

{
  "hex": "#575bbb",
  "rgb": {
    "r": 87,
    "g": 91,
    "b": 187
  },
  "hsl": {
    "h": 237.6,
    "s": 42.373,
    "l": 53.725
  },
  "oklch": {
    "l": 0.51793,
    "c": 0.14804,
    "h": 278.1
  },
  "luminance": 0.13096
}

Semantic roles & 50–950 ramp

primary

#575BBB

secondary

#CCCBA2

accent

#CD56D2

background

#F9F8FC

surface

#F1F0F9

border

#CBCBD2

text

#0D0B14

muted

#7E7C82

Preview Lab

Preview with #575BBB

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

Preview Lab → · Contrast checker → · Palette generator →