#575BCB#575BCB

#575BCB is a mid, vivid blue. Relative luminance 0.138; OKLCH L 52.9% C 0.170 H 277.3°. Best body text is #FFFFFF at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#575BCB
RGB	rgb(87, 91, 203)
HSL	hsl(238, 53%, 57%)
HSV	hsv(238, 57%, 80%)
CMYK	cmyk(57.1%, 55.2%, 0%, 20.4%)
CIE-LAB	lab(43.97, 30.99, -58.90)
CIE-LCH	lch(43.97, 66.55, 297.75°)
OKLab	oklab(52.93% 0.0217 -0.1688)
OKLCH	oklch(52.93% 0.17 277.3)
XYZ	xyz(18.4476, 13.8189, 58.1835)
Luminance	0.1382 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#575BCB #CBC757

analogous

#5795CB #575BCB #8D57CB

triadic

#575BCB #CB575B #5BCB57

tetradic

#575BCB #CB5795 #CBC757 #57CB8D

square

#575BCB #CB5795 #CBC757 #57CB8D

split-complementary

#575BCB #CB8D57 #95CB57

monochromatic

#282B80 #363AAF #575BCB #8689D9 #B4B6E8

Accessibility & contrast

On white

5.58

#575BCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#575BCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #575BCB

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##575BCB	#FFFFFF	#000000	##FFFFFF
##575BCB	1.00	5.58	3.76	5.58
#FFFFFF	5.58	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#086DCF

Deuteranopia (green-blind)

#0063C9

Tritanopia (blue-blind)

#0F758A

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #575bcb;
/* rgb */ color: rgb(87, 91, 203);
/* oklch */ color: oklch(52.9% 0.170 277.3);

Tailwind

colors: {
  custom: {
    50: '#9089dc',
    500: '#575bcb',
    950: '#000000',
  },
}

SCSS

$custom: #575bcb;
$custom-light: #9089dc;
$custom-dark: #000000;

JSON

{
  "hex": "#575bcb",
  "rgb": {
    "r": 87,
    "g": 91,
    "b": 203
  },
  "hsl": {
    "h": 237.931,
    "s": 52.727,
    "l": 56.863
  },
  "oklch": {
    "l": 0.52931,
    "c": 0.17019,
    "h": 277.3
  },
  "luminance": 0.1382
}

Semantic roles & 50–950 ramp

primary

#575BCB

secondary

#D7D5A7

accent

#D74CDC

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #575BCB

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

Preview Lab → · Contrast checker → · Palette generator →