#576DCB#576DCB

#576DCB is a mid, vivid blue. Relative luminance 0.173; OKLCH L 56.4% C 0.147 H 271.1°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#576DCB
RGB	rgb(87, 109, 203)
HSL	hsl(229, 53%, 57%)
HSV	hsv(229, 57%, 80%)
CMYK	cmyk(57.1%, 46.3%, 0%, 20.4%)
CIE-LAB	lab(48.60, 19.80, -51.45)
CIE-LCH	lch(48.60, 55.12, 291.05°)
OKLab	oklab(56.42% 0.0029 -0.1467)
OKLCH	oklch(56.42% 0.147 271.1)
XYZ	xyz(20.1751, 17.2738, 58.7594)
Luminance	0.1727 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#576DCB #CBB557

analogous

#57A7CB #576DCB #7B57CB

triadic

#576DCB #CB576D #6DCB57

tetradic

#576DCB #CB57A7 #CBB557 #57CB7B

square

#576DCB #CB57A7 #CBB557 #57CB7B

split-complementary

#576DCB #CB7B57 #A7CB57

monochromatic

#283880 #364DAF #576DCB #8696D9 #B4BEE8

Accessibility & contrast

On white

4.71

#576DCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#576DCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #576DCB

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##576DCB	#FFFFFF	#000000	##FFFFFF
##576DCB	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4179CE

Deuteranopia (green-blind)

#316FC9

Tritanopia (blue-blind)

#048292

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #576dcb;
/* rgb */ color: rgb(87, 109, 203);
/* oklch */ color: oklch(56.4% 0.147 271.1);

Tailwind

colors: {
  custom: {
    50: '#8f96db',
    500: '#576dcb',
    950: '#000000',
  },
}

SCSS

$custom: #576dcb;
$custom-light: #8f96db;
$custom-dark: #000000;

JSON

{
  "hex": "#576dcb",
  "rgb": {
    "r": 87,
    "g": 109,
    "b": 203
  },
  "hsl": {
    "h": 228.621,
    "s": 52.727,
    "l": 56.863
  },
  "oklch": {
    "l": 0.56424,
    "c": 0.14674,
    "h": 271.1
  },
  "luminance": 0.17275
}

Semantic roles & 50–950 ramp

primary

#576DCB

secondary

#D7CEA7

accent

#C14CDC

background

#F9F9FD

surface

#F2F1FB

border

#CCCBD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #576DCB

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

Preview Lab → · Contrast checker → · Palette generator →