#577CDE#577CDE

#577CDE is a mid, vivid blue. Relative luminance 0.217; OKLCH L 60.7% C 0.154 H 266.3°. Best body text is #000000 at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#577CDE
RGB	rgb(87, 124, 222)
HSL	hsl(224, 67%, 61%)
HSV	hsv(224, 61%, 87%)
CMYK	cmyk(60.8%, 44.1%, 0%, 12.9%)
CIE-LAB	lab(53.72, 16.90, -54.03)
CIE-LCH	lch(53.72, 56.62, 287.36°)
OKLab	oklab(60.7% -0.0099 -0.1541)
OKLCH	oklch(60.7% 0.154 266.3)
XYZ	xyz(24.3184, 21.7134, 72.0026)
Luminance	0.2172 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577CDE #DEB957

analogous

#57BFDE #577CDE #7657DE

triadic

#577CDE #DE577C #7CDE57

tetradic

#577CDE #DE57BF #DEB957 #57DE76

square

#577CDE #DE57BF #DEB957 #57DE76

split-complementary

#577CDE #DE7657 #BFDE57

monochromatic

#1F419C #2956CF #577CDE #8AA4E8 #BDCCF2

Accessibility & contrast

On white

3.93

#577CDE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.34

#577CDE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577CDE

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577CDE	#FFFFFF	#000000	##000000
##577CDE	1.00	3.93	5.34	5.34
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.34	21.00	1.00	1.00
##000000	5.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E87E2

Deuteranopia (green-blind)

#3A7BDC

Tritanopia (blue-blind)

#0092A2

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #577cde;
/* rgb */ color: rgb(87, 124, 222);
/* oklch */ color: oklch(60.7% 0.154 266.3);

Tailwind

colors: {
  custom: {
    50: '#92a1e9',
    500: '#577cde',
    950: '#000000',
  },
}

SCSS

$custom: #577cde;
$custom-light: #92a1e9;
$custom-dark: #000000;

JSON

{
  "hex": "#577cde",
  "rgb": {
    "r": 87,
    "g": 124,
    "b": 222
  },
  "hsl": {
    "h": 223.556,
    "s": 67.164,
    "l": 60.588
  },
  "oklch": {
    "l": 0.60695,
    "c": 0.15446,
    "h": 266.3
  },
  "luminance": 0.21715
}

Semantic roles & 50–950 ramp

primary

#577CDE

secondary

#E2D4AF

accent

#9C16CF

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #577CDE

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

Preview Lab → · Contrast checker → · Palette generator →