#577CD2#577CD2

#577CD2 is a mid, vivid blue. Relative luminance 0.211; OKLCH L 60.0% C 0.138 H 265.0°. Best body text is #000000 at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#577CD2
RGB	rgb(87, 124, 210)
HSL	hsl(222, 58%, 58%)
HSV	hsv(222, 59%, 82%)
CMYK	cmyk(58.6%, 41%, 0%, 17.6%)
CIE-LAB	lab(53.05, 12.89, -48.33)
CIE-LCH	lch(53.05, 50.02, 284.93°)
OKLab	oklab(59.96% -0.012 -0.1374)
OKLCH	oklch(59.96% 0.138 265)
XYZ	xyz(22.7670, 21.0928, 63.8318)
Luminance	0.2109 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577CD2 #D2AD57

analogous

#57B9D2 #577CD2 #6F57D2

triadic

#577CD2 #D2577C #7CD257

tetradic

#577CD2 #D257B9 #D2AD57 #57D26F

square

#577CD2 #D257B9 #D2AD57 #57D26F

split-complementary

#577CD2 #D26F57 #B9D257

monochromatic

#25438A #325BBA #577CD2 #87A2DF #B8C7EC

Accessibility & contrast

On white

4.02

#577CD2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.22

#577CD2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577CD2

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577CD2	#FFFFFF	#000000	##000000
##577CD2	1.00	4.02	5.22	5.22
#FFFFFF	4.02	1.00	21.00	21.00
#000000	5.22	21.00	1.00	1.00
##000000	5.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5785D5

Deuteranopia (green-blind)

#4679D0

Tritanopia (blue-blind)

#008F9D

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #577cd2;
/* rgb */ color: rgb(87, 124, 210);
/* oklch */ color: oklch(60.0% 0.138 265.0);

Tailwind

colors: {
  custom: {
    50: '#90a1e0',
    500: '#577cd2',
    950: '#000000',
  },
}

SCSS

$custom: #577cd2;
$custom-light: #90a1e0;
$custom-dark: #000000;

JSON

{
  "hex": "#577cd2",
  "rgb": {
    "r": 87,
    "g": 124,
    "b": 210
  },
  "hsl": {
    "h": 221.951,
    "s": 57.746,
    "l": 58.235
  },
  "oklch": {
    "l": 0.59962,
    "c": 0.13794,
    "h": 265
  },
  "luminance": 0.21095
}

Semantic roles & 50–950 ramp

primary

#577CD2

secondary

#DBCCAA

accent

#B347E1

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #577CD2

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

Preview Lab → · Contrast checker → · Palette generator →