#577EDD#577EDD

#577EDD is a mid, vivid blue. Relative luminance 0.222; OKLCH L 61.0% C 0.151 H 265.4°. Best body text is #000000 at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#577EDD
RGB	rgb(87, 126, 221)
HSL	hsl(223, 66%, 60%)
HSV	hsv(223, 61%, 87%)
CMYK	cmyk(60.6%, 43%, 0%, 13.3%)
CIE-LAB	lab(54.20, 15.34, -52.70)
CIE-LCH	lch(54.20, 54.89, 286.23°)
OKLab	oklab(61.05% -0.0121 -0.1502)
OKLCH	oklch(61.05% 0.151 265.4)
XYZ	xyz(24.4380, 22.1663, 71.3833)
Luminance	0.2217 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577EDD #DDB657

analogous

#57C1DD #577EDD #7357DD

triadic

#577EDD #DD577E #7EDD57

tetradic

#577EDD #DD57C1 #DDB657 #57DD73

square

#577EDD #DD57C1 #DDB657 #57DD73

split-complementary

#577EDD #DD7357 #C1DD57

monochromatic

#1F439A #2A59CD #577EDD #8AA5E7 #BDCCF2

Accessibility & contrast

On white

3.86

#577EDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.43

#577EDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577EDD

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577EDD	#FFFFFF	#000000	##000000
##577EDD	1.00	3.86	5.43	5.43
#FFFFFF	3.86	1.00	21.00	21.00
#000000	5.43	21.00	1.00	1.00
##000000	5.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5388E1

Deuteranopia (green-blind)

#3F7CDB

Tritanopia (blue-blind)

#0093A3

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #577edd;
/* rgb */ color: rgb(87, 126, 221);
/* oklch */ color: oklch(61.0% 0.151 265.4);

Tailwind

colors: {
  custom: {
    50: '#91a2e8',
    500: '#577edd',
    950: '#000000',
  },
}

SCSS

$custom: #577edd;
$custom-light: #91a2e8;
$custom-dark: #000000;

JSON

{
  "hex": "#577edd",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 221
  },
  "hsl": {
    "h": 222.537,
    "s": 66.337,
    "l": 60.392
  },
  "oklch": {
    "l": 0.61047,
    "c": 0.1507,
    "h": 265.4
  },
  "luminance": 0.22168
}

Semantic roles & 50–950 ramp

primary

#577EDD

secondary

#E1D3AE

accent

#9917CE

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #577EDD

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

Preview Lab → · Contrast checker → · Palette generator →