#575CB1#575CB1

#575CB1 is a mid, vivid blue. Relative luminance 0.129; OKLCH L 51.3% C 0.132 H 278.1°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#575CB1
RGB	rgb(87, 92, 177)
HSL	hsl(237, 37%, 52%)
HSV	hsv(237, 51%, 69%)
CMYK	cmyk(50.8%, 48%, 0%, 30.6%)
CIE-LAB	lab(42.54, 21.95, -46.07)
CIE-LCH	lch(42.54, 51.03, 295.48°)
OKLab	oklab(51.32% 0.0187 -0.1311)
OKLCH	oklch(51.32% 0.132 278.1)
XYZ	xyz(15.6910, 12.8539, 43.2407)
Luminance	0.1285 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#575CB1 #B1AC57

analogous

#5789B1 #575CB1 #7F57B1

triadic

#575CB1 #B1575C #5CB157

tetradic

#575CB1 #B15789 #B1AC57 #57B17F

square

#575CB1 #B15789 #B1AC57 #57B17F

split-complementary

#575CB1 #B17F57 #89B157

monochromatic

#2D3061 #40448A #575CB1 #8185C4 #ABADD8

Accessibility & contrast

On white

5.88

#575CB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#575CB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #575CB1

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##575CB1	#FFFFFF	#000000	##FFFFFF
##575CB1	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3668B4

Deuteranopia (green-blind)

#2E61AF

Tritanopia (blue-blind)

#336E7E

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #575cb1;
/* rgb */ color: rgb(87, 92, 177);
/* oklch */ color: oklch(51.3% 0.132 278.1);

Tailwind

colors: {
  custom: {
    50: '#8c8ac9',
    500: '#575cb1',
    950: '#000000',
  },
}

SCSS

$custom: #575cb1;
$custom-light: #8c8ac9;
$custom-dark: #000000;

JSON

{
  "hex": "#575cb1",
  "rgb": {
    "r": 87,
    "g": 92,
    "b": 177
  },
  "hsl": {
    "h": 236.667,
    "s": 36.585,
    "l": 51.765
  },
  "oklch": {
    "l": 0.51318,
    "c": 0.1324,
    "h": 278.1
  },
  "luminance": 0.12855
}

Semantic roles & 50–950 ramp

primary

#575CB1

secondary

#C6C39E

accent

#C65BCD

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0D0B13

muted

#7D7C82

Preview Lab

Preview with #575CB1

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

Preview Lab → · Contrast checker → · Palette generator →