#577ADD#577ADD

#577ADD is a mid, vivid blue. Relative luminance 0.212; OKLCH L 60.2% C 0.156 H 267.0°. Best body text is #000000 at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#577ADD
RGB	rgb(87, 122, 221)
HSL	hsl(224, 66%, 60%)
HSV	hsv(224, 61%, 87%)
CMYK	cmyk(60.6%, 44.8%, 0%, 13.3%)
CIE-LAB	lab(53.13, 17.79, -54.42)
CIE-LCH	lch(53.13, 57.25, 288.10°)
OKLab	oklab(60.22% -0.008 -0.1553)
OKLCH	oklch(60.22% 0.156 267)
XYZ	xyz(23.9367, 21.1637, 71.2162)
Luminance	0.2117 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577ADD #DDBA57

analogous

#57BDDD #577ADD #7757DD

triadic

#577ADD #DD577A #7ADD57

tetradic

#577ADD #DD57BD #DDBA57 #57DD77

square

#577ADD #DD57BD #DDBA57 #57DD77

split-complementary

#577ADD #DD7757 #BDDD57

monochromatic

#1F3F9A #2A54CD #577ADD #8AA2E7 #BDCBF2

Accessibility & contrast

On white

4.01

#577ADD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.23

#577ADD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577ADD

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577ADD	#FFFFFF	#000000	##000000
##577ADD	1.00	4.01	5.23	5.23
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.23	21.00	1.00	1.00
##000000	5.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B85E1

Deuteranopia (green-blind)

#3779DB

Tritanopia (blue-blind)

#0090A1

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #577add;
/* rgb */ color: rgb(87, 122, 221);
/* oklch */ color: oklch(60.2% 0.156 267.0);

Tailwind

colors: {
  custom: {
    50: '#92a0e8',
    500: '#577add',
    950: '#000000',
  },
}

SCSS

$custom: #577add;
$custom-light: #92a0e8;
$custom-dark: #000000;

JSON

{
  "hex": "#577add",
  "rgb": {
    "r": 87,
    "g": 122,
    "b": 221
  },
  "hsl": {
    "h": 224.328,
    "s": 66.337,
    "l": 60.392
  },
  "oklch": {
    "l": 0.60222,
    "c": 0.15551,
    "h": 267
  },
  "luminance": 0.21166
}

Semantic roles & 50–950 ramp

primary

#577ADD

secondary

#E1D4AE

accent

#9E17CE

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #577ADD

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

Preview Lab → · Contrast checker → · Palette generator →