#575BB5#575BB5

#575BB5 is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.4% C 0.140 H 278.4°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#575BB5
RGB	rgb(87, 91, 181)
HSL	hsl(237, 39%, 53%)
HSV	hsv(237, 52%, 71%)
CMYK	cmyk(51.9%, 49.7%, 0%, 29%)
CIE-LAB	lab(42.53, 23.86, -48.44)
CIE-LCH	lch(42.53, 54.00, 296.22°)
OKLab	oklab(51.39% 0.0203 -0.1381)
OKLCH	oklch(51.39% 0.14 278.4)
XYZ	xyz(16.0095, 12.8436, 45.3426)
Luminance	0.1285 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#575BB5 #B5B157

analogous

#578AB5 #575BB5 #8257B5

triadic

#575BB5 #B5575B #5BB557

tetradic

#575BB5 #B5578A #B5B157 #57B582

square

#575BB5 #B5578A #B5B157 #57B582

split-complementary

#575BB5 #B58257 #8AB557

monochromatic

#2D2F65 #3F4390 #575BB5 #8184C8 #ACAEDA

Accessibility & contrast

On white

5.88

#575BB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#575BB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #575BB5

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##575BB5	#FFFFFF	#000000	##FFFFFF
##575BB5	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)

#3068B8

Deuteranopia (green-blind)

#2661B3

Tritanopia (blue-blind)

#306F7F

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #575bb5;
/* rgb */ color: rgb(87, 91, 181);
/* oklch */ color: oklch(51.4% 0.140 278.4);

Tailwind

colors: {
  custom: {
    50: '#8d89cc',
    500: '#575bb5',
    950: '#000000',
  },
}

SCSS

$custom: #575bb5;
$custom-light: #8d89cc;
$custom-dark: #000000;

JSON

{
  "hex": "#575bb5",
  "rgb": {
    "r": 87,
    "g": 91,
    "b": 181
  },
  "hsl": {
    "h": 237.447,
    "s": 38.843,
    "l": 52.549
  },
  "oklch": {
    "l": 0.51385,
    "c": 0.13954,
    "h": 278.4
  },
  "luminance": 0.12845
}

Semantic roles & 50–950 ramp

primary

#575BB5

secondary

#C8C79F

accent

#CA59CF

background

#F9F8FC

surface

#F1F0F9

border

#CBCBD2

text

#0D0B13

muted

#7E7C82

Preview Lab

Preview with #575BB5

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

Preview Lab → · Contrast checker → · Palette generator →