#575BBC#575BBC

#575BBC is a mid, vivid blue. Relative luminance 0.131; OKLCH L 51.9% C 0.149 H 278.0°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX#575BBC
RGBrgb(87, 91, 188)
HSLhsl(238, 43%, 54%)
HSVhsv(238, 54%, 74%)
CMYKcmyk(53.7%, 51.6%, 0%, 26.3%)
CIE-LABlab(42.97, 26.12, -51.82)
CIE-LCHlch(42.97, 58.03, 296.75°)
OKLaboklab(51.86% 0.0209 -0.148)
OKLCHoklch(51.86% 0.149 278)
XYZxyz(16.7458, 13.1382, 49.2207)
Luminance0.1314 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#575BBC #BCB857
analogous
#578EBC #575BBC #8657BC
triadic
#575BBC #BC575B #5BBC57
tetradic
#575BBC #BC578E #BCB857 #57BC86
square
#575BBC #BC578E #BCB857 #57BC86
split-complementary
#575BBC #BC8657 #8EBC57
monochromatic
#2C2E6D #3D4199 #575BBC #8386CD #AFB0DF

Accessibility & contrast

On white

5.79
#575BBC on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.63
#575BBC on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #575BBC
5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##575BBC#FFFFFF#000000##FFFFFF
##575BBC1.005.793.635.79
#FFFFFF5.791.0021.001.00
#0000003.6321.001.0021.00
##FFFFFF5.791.0021.001.00

Color blindness preview

Protanopia (red-blind)
#286ABF
Deuteranopia (green-blind)
#1A62BA
Tritanopia (blue-blind)
#297183
Achromatopsia (no color)
#656565

Design tokens & code

CSS
--color: #575bbc;
/* rgb */ color: rgb(87, 91, 188);
/* oklch */ color: oklch(51.9% 0.149 278.0);
Tailwind
colors: {
  custom: {
    50: '#8e89d1',
    500: '#575bbc',
    950: '#000000',
  },
}
SCSS
$custom: #575bbc;
$custom-light: #8e89d1;
$custom-dark: #000000;
JSON
{
  "hex": "#575bbc",
  "rgb": {
    "r": 87,
    "g": 91,
    "b": 188
  },
  "hsl": {
    "h": 237.624,
    "s": 42.979,
    "l": 53.922
  },
  "oklch": {
    "l": 0.51862,
    "c": 0.14945,
    "h": 278
  },
  "luminance": 0.13139
}

Semantic roles & 50–950 ramp

primary
#575BBC
secondary
#CDCBA2
accent
#CE55D3
background
#F9F8FC
surface
#F1F0F9
border
#CBCBD2
text
#0D0B14
muted
#7E7C82

Preview Lab

Preview with #575BBC

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

Preview Lab → · Contrast checker → · Palette generator →

#575BBC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva