#575BB4#575BB4

#575BB4 is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.3% C 0.138 H 278.4°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#575BB4
RGB	rgb(87, 91, 180)
HSL	hsl(237, 38%, 52%)
HSV	hsv(237, 52%, 71%)
CMYK	cmyk(51.7%, 49.4%, 0%, 29.4%)
CIE-LAB	lab(42.46, 23.54, -47.96)
CIE-LCH	lch(42.46, 53.42, 296.14°)
OKLab	oklab(51.32% 0.0202 -0.1366)
OKLCH	oklch(51.32% 0.138 278.4)
XYZ	xyz(15.9072, 12.8027, 44.8041)
Luminance	0.1280 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#575BB4 #B4B057

analogous

#578AB4 #575BB4 #8157B4

triadic

#575BB4 #B4575B #5BB457

tetradic

#575BB4 #B4578A #B4B057 #57B481

square

#575BB4 #B4578A #B4B057 #57B481

split-complementary

#575BB4 #B48157 #8AB457

monochromatic

#2D2F64 #40438E #575BB4 #8184C7 #ACAEDA

Accessibility & contrast

On white

5.90

#575BB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#575BB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #575BB4

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##575BB4	#FFFFFF	#000000	##FFFFFF
##575BB4	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3168B7

Deuteranopia (green-blind)

#2861B2

Tritanopia (blue-blind)

#306E7F

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #575bb4;
/* rgb */ color: rgb(87, 91, 180);
/* oklch */ color: oklch(51.3% 0.138 278.4);

Tailwind

colors: {
  custom: {
    50: '#8d89cb',
    500: '#575bb4',
    950: '#000000',
  },
}

SCSS

$custom: #575bb4;
$custom-light: #8d89cb;
$custom-dark: #000000;

JSON

{
  "hex": "#575bb4",
  "rgb": {
    "r": 87,
    "g": 91,
    "b": 180
  },
  "hsl": {
    "h": 237.419,
    "s": 38.272,
    "l": 52.353
  },
  "oklch": {
    "l": 0.51318,
    "c": 0.13811,
    "h": 278.4
  },
  "luminance": 0.12804
}

Semantic roles & 50–950 ramp

primary

#575BB4

secondary

#C8C69F

accent

#C95ACE

background

#F9F8FC

surface

#F1F0F8

border

#CBCBD1

text

#0D0B13

muted

#7E7C82

Preview Lab

Preview with #575BB4

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

Preview Lab → · Contrast checker → · Palette generator →