#576FCB#576FCB

#576FCB is a mid, vivid blue. Relative luminance 0.177; OKLCH L 56.8% C 0.144 H 270.3°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#576FCB
RGB	rgb(87, 111, 203)
HSL	hsl(228, 53%, 57%)
HSV	hsv(228, 57%, 80%)
CMYK	cmyk(57.1%, 45.3%, 0%, 20.4%)
CIE-LAB	lab(49.14, 18.56, -50.59)
CIE-LCH	lch(49.14, 53.89, 290.14°)
OKLab	oklab(56.83% 0.0007 -0.1442)
OKLCH	oklch(56.83% 0.144 270.3)
XYZ	xyz(20.3908, 17.7054, 58.8313)
Luminance	0.1771 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#576FCB #CBB357

analogous

#57A9CB #576FCB #7957CB

triadic

#576FCB #CB576F #6FCB57

tetradic

#576FCB #CB57A9 #CBB357 #57CB79

square

#576FCB #CB57A9 #CBB357 #57CB79

split-complementary

#576FCB #CB7957 #A9CB57

monochromatic

#283A80 #364FAF #576FCB #8697D9 #B4BFE8

Accessibility & contrast

On white

4.62

#576FCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#576FCB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #576FCB

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##576FCB	#FFFFFF	#000000	##FFFFFF
##576FCB	1.00	4.62	4.54	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#457ACE

Deuteranopia (green-blind)

#3570C9

Tritanopia (blue-blind)

#028393

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #576fcb;
/* rgb */ color: rgb(87, 111, 203);
/* oklch */ color: oklch(56.8% 0.144 270.3);

Tailwind

colors: {
  custom: {
    50: '#8f98db',
    500: '#576fcb',
    950: '#000000',
  },
}

SCSS

$custom: #576fcb;
$custom-light: #8f98db;
$custom-dark: #000000;

JSON

{
  "hex": "#576fcb",
  "rgb": {
    "r": 87,
    "g": 111,
    "b": 203
  },
  "hsl": {
    "h": 227.586,
    "s": 52.727,
    "l": 56.863
  },
  "oklch": {
    "l": 0.56831,
    "c": 0.14418,
    "h": 270.3
  },
  "luminance": 0.17707
}

Semantic roles & 50–950 ramp

primary

#576FCB

secondary

#D7CDA7

accent

#BE4CDC

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #576FCB

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

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