#577DC8#577DC8

#577DC8 is a mid, vivid blue. Relative luminance 0.209; OKLCH L 59.6% C 0.123 H 262.9°. Best body text is #000000 at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#577DC8
RGB	rgb(87, 125, 200)
HSL	hsl(220, 51%, 56%)
HSV	hsv(220, 57%, 78%)
CMYK	cmyk(56.5%, 37.5%, 0%, 21.6%)
CIE-LAB	lab(52.80, 8.98, -43.06)
CIE-LCH	lch(52.80, 43.98, 281.79°)
OKLab	oklab(59.59% -0.0153 -0.122)
OKLCH	oklch(59.59% 0.123 262.9)
XYZ	xyz(21.6859, 20.8619, 57.5163)
Luminance	0.2086 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577DC8 #C8A257

analogous

#57B6C8 #577DC8 #6A57C8

triadic

#577DC8 #C8577D #7DC857

tetradic

#577DC8 #C857B6 #C8A257 #57C86A

square

#577DC8 #C857B6 #C8A257 #57C86A

split-complementary

#577DC8 #C86A57 #B6C857

monochromatic

#29457C #385EAA #577DC8 #85A1D7 #B3C4E6

Accessibility & contrast

On white

4.06

#577DC8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.17

#577DC8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577DC8

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577DC8	#FFFFFF	#000000	##000000
##577DC8	1.00	4.06	5.17	5.17
#FFFFFF	4.06	1.00	21.00	21.00
#000000	5.17	21.00	1.00	1.00
##000000	5.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E84CB

Deuteranopia (green-blind)

#5079C6

Tritanopia (blue-blind)

#028E99

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #577dc8;
/* rgb */ color: rgb(87, 125, 200);
/* oklch */ color: oklch(59.6% 0.123 262.9);

Tailwind

colors: {
  custom: {
    50: '#8ea2d9',
    500: '#577dc8',
    950: '#000000',
  },
}

SCSS

$custom: #577dc8;
$custom-light: #8ea2d9;
$custom-dark: #000000;

JSON

{
  "hex": "#577dc8",
  "rgb": {
    "r": 87,
    "g": 125,
    "b": 200
  },
  "hsl": {
    "h": 219.823,
    "s": 50.673,
    "l": 56.275
  },
  "oklch": {
    "l": 0.59594,
    "c": 0.12291,
    "h": 262.9
  },
  "luminance": 0.20864
}

Semantic roles & 50–950 ramp

primary

#577DC8

secondary

#D5C5A6

accent

#AB4EDA

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0F14

muted

#7E7E83

Preview Lab

Preview with #577DC8

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

Preview Lab → · Contrast checker → · Palette generator →