#577CE8#577CE8

#577CE8 is a mid, vivid blue. Relative luminance 0.223; OKLCH L 61.3% C 0.168 H 267.1°. Best body text is #000000 at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#577CE8
RGB	rgb(87, 124, 232)
HSL	hsl(225, 76%, 63%)
HSV	hsv(225, 63%, 91%)
CMYK	cmyk(62.5%, 46.6%, 0%, 9%)
CIE-LAB	lab(54.31, 20.27, -58.70)
CIE-LCH	lch(54.31, 62.10, 289.05°)
OKLab	oklab(61.33% -0.0084 -0.1678)
OKLCH	oklch(61.33% 0.168 267.1)
XYZ	xyz(25.6986, 22.2654, 79.2717)
Luminance	0.2227 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577CE8 #E8C357

analogous

#57C4E8 #577CE8 #7B57E8

triadic

#577CE8 #E8577C #7CE857

tetradic

#577CE8 #E857C4 #E8C357 #57E87B

square

#577CE8 #E857C4 #E8C357 #57E87B

split-complementary

#577CE8 #E87B57 #C4E857

monochromatic

#183EAD #2152E1 #577CE8 #8DA6EF #C3D0F7

Accessibility & contrast

On white

3.85

#577CE8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.45

#577CE8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577CE8

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577CE8	#FFFFFF	#000000	##000000
##577CE8	1.00	3.85	5.45	5.45
#FFFFFF	3.85	1.00	21.00	21.00
#000000	5.45	21.00	1.00	1.00
##000000	5.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4689EC

Deuteranopia (green-blind)

#2B7CE6

Tritanopia (blue-blind)

#0095A7

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #577ce8;
/* rgb */ color: rgb(87, 124, 232);
/* oklch */ color: oklch(61.3% 0.168 267.1);

Tailwind

colors: {
  custom: {
    50: '#93a1f0',
    500: '#577ce8',
    950: '#000000',
  },
}

SCSS

$custom: #577ce8;
$custom-light: #93a1f0;
$custom-dark: #000000;

JSON

{
  "hex": "#577ce8",
  "rgb": {
    "r": 87,
    "g": 124,
    "b": 232
  },
  "hsl": {
    "h": 224.69,
    "s": 75.916,
    "l": 62.549
  },
  "oklch": {
    "l": 0.61333,
    "c": 0.16806,
    "h": 267.1
  },
  "luminance": 0.22268
}

Semantic roles & 50–950 ramp

primary

#577CE8

secondary

#E8DAB3

accent

#A40DD8

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #577CE8

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

Preview Lab → · Contrast checker → · Palette generator →