#577ED2#577ED2

#577ED2 is a mid, vivid blue. Relative luminance 0.216; OKLCH L 60.4% C 0.136 H 264.0°. Best body text is #000000 at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#577ED2
RGB	rgb(87, 126, 210)
HSL	hsl(221, 58%, 58%)
HSV	hsv(221, 59%, 82%)
CMYK	cmyk(58.6%, 40%, 0%, 17.6%)
CIE-LAB	lab(53.60, 11.67, -47.46)
CIE-LCH	lch(53.60, 48.88, 283.82°)
OKLab	oklab(60.39% -0.0142 -0.1348)
OKLCH	oklch(60.39% 0.136 264)
XYZ	xyz(23.0202, 21.5992, 63.9162)
Luminance	0.2160 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577ED2 #D2AB57

analogous

#57BBD2 #577ED2 #6E57D2

triadic

#577ED2 #D2577E #7ED257

tetradic

#577ED2 #D257BB #D2AB57 #57D26E

square

#577ED2 #D257BB #D2AB57 #57D26E

split-complementary

#577ED2 #D26E57 #BBD257

monochromatic

#25458A #325DBA #577ED2 #87A3DF #B8C8EC

Accessibility & contrast

On white

3.95

#577ED2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.32

#577ED2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577ED2

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577ED2	#FFFFFF	#000000	##000000
##577ED2	1.00	3.95	5.32	5.32
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.32	21.00	1.00	1.00
##000000	5.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A86D5

Deuteranopia (green-blind)

#4A7BD0

Tritanopia (blue-blind)

#00919E

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #577ed2;
/* rgb */ color: rgb(87, 126, 210);
/* oklch */ color: oklch(60.4% 0.136 264.0);

Tailwind

colors: {
  custom: {
    50: '#90a3e0',
    500: '#577ed2',
    950: '#000000',
  },
}

SCSS

$custom: #577ed2;
$custom-light: #90a3e0;
$custom-dark: #000000;

JSON

{
  "hex": "#577ed2",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 210
  },
  "hsl": {
    "h": 220.976,
    "s": 57.746,
    "l": 58.235
  },
  "oklch": {
    "l": 0.60385,
    "c": 0.13558,
    "h": 264
  },
  "luminance": 0.21601
}

Semantic roles & 50–950 ramp

primary

#577ED2

secondary

#DBCBAA

accent

#B047E1

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #577ED2

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

Preview Lab → · Contrast checker → · Palette generator →