#575CBB#575CBB

#575CBB is a mid, vivid blue. Relative luminance 0.133; OKLCH L 52.0% C 0.147 H 277.7°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#575CBB
RGB	rgb(87, 92, 187)
HSL	hsl(237, 42%, 54%)
HSV	hsv(237, 53%, 73%)
CMYK	cmyk(53.5%, 50.8%, 0%, 26.7%)
CIE-LAB	lab(43.16, 25.17, -50.93)
CIE-LCH	lch(43.16, 56.81, 296.30°)
OKLab	oklab(51.99% 0.0197 -0.1453)
OKLCH	oklch(51.99% 0.147 277.7)
XYZ	xyz(16.7244, 13.2673, 48.6836)
Luminance	0.1327 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#575CBB #BBB657

analogous

#578EBB #575CBB #8457BB

triadic

#575CBB #BB575C #5CBB57

tetradic

#575CBB #BB578E #BBB657 #57BB84

square

#575CBB #BB578E #BBB657 #57BB84

split-complementary

#575CBB #BB8457 #8EBB57

monochromatic

#2C2F6C #3D4297 #575CBB #8386CD #AEB1DE

Accessibility & contrast

On white

5.75

#575CBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#575CBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #575CBB

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##575CBB	#FFFFFF	#000000	##FFFFFF
##575CBB	1.00	5.75	3.65	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C6ABE

Deuteranopia (green-blind)

#1F62B9

Tritanopia (blue-blind)

#297183

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #575cbb;
/* rgb */ color: rgb(87, 92, 187);
/* oklch */ color: oklch(52.0% 0.147 277.7);

Tailwind

colors: {
  custom: {
    50: '#8e8ad0',
    500: '#575cbb',
    950: '#000000',
  },
}

SCSS

$custom: #575cbb;
$custom-light: #8e8ad0;
$custom-dark: #000000;

JSON

{
  "hex": "#575cbb",
  "rgb": {
    "r": 87,
    "g": 92,
    "b": 187
  },
  "hsl": {
    "h": 237,
    "s": 42.373,
    "l": 53.725
  },
  "oklch": {
    "l": 0.51986,
    "c": 0.14668,
    "h": 277.7
  },
  "luminance": 0.13268
}

Semantic roles & 50–950 ramp

primary

#575CBB

secondary

#CCCAA2

accent

#CC56D2

background

#F9F8FC

surface

#F1F0F9

border

#CBCBD2

text

#0D0B14

muted

#7E7C82

Preview Lab

Preview with #575CBB

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

Preview Lab → · Contrast checker → · Palette generator →