#577CD8#577CD8

#577CD8 is a mid, vivid blue. Relative luminance 0.214; OKLCH L 60.3% C 0.146 H 265.7°. Best body text is #000000 at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#577CD8
RGB	rgb(87, 124, 216)
HSL	hsl(223, 62%, 59%)
HSV	hsv(223, 60%, 85%)
CMYK	cmyk(59.7%, 42.6%, 0%, 15.3%)
CIE-LAB	lab(53.38, 14.89, -51.20)
CIE-LCH	lch(53.38, 53.32, 286.21°)
OKLab	oklab(60.32% -0.0109 -0.1458)
OKLCH	oklch(60.32% 0.146 265.7)
XYZ	xyz(23.5286, 21.3974, 67.8426)
Luminance	0.2140 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577CD8 #D8B357

analogous

#57BCD8 #577CD8 #7357D8

triadic

#577CD8 #D8577C #7CD857

tetradic

#577CD8 #D857BC #D8B357 #57D873

square

#577CD8 #D857BC #D8B357 #57D873

split-complementary

#577CD8 #D87357 #BCD857

monochromatic

#224293 #2E59C4 #577CD8 #89A3E4 #BAC9EF

Accessibility & contrast

On white

3.98

#577CD8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.28

#577CD8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577CD8

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577CD8	#FFFFFF	#000000	##000000
##577CD8	1.00	3.98	5.28	5.28
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.28	21.00	1.00	1.00
##000000	5.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5386DC

Deuteranopia (green-blind)

#407AD6

Tritanopia (blue-blind)

#00919F

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #577cd8;
/* rgb */ color: rgb(87, 124, 216);
/* oklch */ color: oklch(60.3% 0.146 265.7);

Tailwind

colors: {
  custom: {
    50: '#91a1e4',
    500: '#577cd8',
    950: '#000000',
  },
}

SCSS

$custom: #577cd8;
$custom-light: #91a1e4;
$custom-dark: #000000;

JSON

{
  "hex": "#577cd8",
  "rgb": {
    "r": 87,
    "g": 124,
    "b": 216
  },
  "hsl": {
    "h": 222.791,
    "s": 62.319,
    "l": 59.412
  },
  "oklch": {
    "l": 0.60324,
    "c": 0.14622,
    "h": 265.7
  },
  "luminance": 0.21399
}

Semantic roles & 50–950 ramp

primary

#577CD8

secondary

#DFD0AC

accent

#B742E5

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #577CD8

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

Preview Lab → · Contrast checker → · Palette generator →