#577DE9#577DE9

#577DE9 is a mid, vivid blue. Relative luminance 0.226; OKLCH L 61.6% C 0.168 H 266.9°. Best body text is #000000 at 5.52:1 contrast (WCAG AA passes).

Color values

HEX#577DE9
RGBrgb(87, 125, 233)
HSLhsl(224, 77%, 63%)
HSVhsv(224, 63%, 91%)
CMYKcmyk(62.7%, 46.4%, 0%, 8.6%)
CIE-LABlab(54.63, 19.99, -58.74)
CIE-LCHlch(54.63, 62.05, 288.80°)
OKLaboklab(61.6% -0.0092 -0.168)
OKLCHoklch(61.6% 0.168 266.9)
XYZxyz(25.9670, 22.5743, 80.0638)
Luminance0.2258 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#577DE9 #E9C357
analogous
#57C6E9 #577DE9 #7A57E9
triadic
#577DE9 #E9577D #7DE957
tetradic
#577DE9 #E957C6 #E9C357 #57E97A
square
#577DE9 #E957C6 #E9C357 #57E97A
split-complementary
#577DE9 #E97A57 #C6E957
monochromatic
#173EAF #2153E2 #577DE9 #8DA7F0 #C3D1F7

Accessibility & contrast

On white

3.81
#577DE9 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.52
#577DE9 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577DE9
5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##577DE9#FFFFFF#000000##000000
##577DE91.003.815.525.52
#FFFFFF3.811.0021.0021.00
#0000005.5221.001.001.00
##0000005.5221.001.001.00

Color blindness preview

Protanopia (red-blind)
#478AED
Deuteranopia (green-blind)
#2D7CE7
Tritanopia (blue-blind)
#0096A8
Achromatopsia (no color)
#838383

Design tokens & code

CSS
--color: #577de9;
/* rgb */ color: rgb(87, 125, 233);
/* oklch */ color: oklch(61.6% 0.168 266.9);
Tailwind
colors: {
  custom: {
    50: '#93a2f1',
    500: '#577de9',
    950: '#000000',
  },
}
SCSS
$custom: #577de9;
$custom-light: #93a2f1;
$custom-dark: #000000;
JSON
{
  "hex": "#577de9",
  "rgb": {
    "r": 87,
    "g": 125,
    "b": 233
  },
  "hsl": {
    "h": 224.384,
    "s": 76.842,
    "l": 62.745
  },
  "oklch": {
    "l": 0.61599,
    "c": 0.16821,
    "h": 266.9
  },
  "luminance": 0.22577
}

Semantic roles & 50–950 ramp

primary
#577DE9
secondary
#E8DBB3
accent
#A40CD9
background
#F9F9FE
surface
#F2F2FD
border
#CCCCD5
text
#0E0F17
muted
#7E7E85

Preview Lab

Preview with #577DE9

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

Preview Lab → · Contrast checker → · Palette generator →

#577DE9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva