#577CD3#577CD3

#577CD3 is a mid, vivid blue. Relative luminance 0.211; OKLCH L 60.0% C 0.139 H 265.1°. Best body text is #000000 at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#577CD3
RGB	rgb(87, 124, 211)
HSL	hsl(222, 58%, 58%)
HSV	hsv(222, 59%, 83%)
CMYK	cmyk(58.8%, 41.2%, 0%, 17.3%)
CIE-LAB	lab(53.11, 13.22, -48.81)
CIE-LCH	lch(53.11, 50.57, 285.15°)
OKLab	oklab(60.02% -0.0119 -0.1388)
OKLCH	oklch(60.02% 0.139 265.1)
XYZ	xyz(22.8920, 21.1428, 64.4900)
Luminance	0.2114 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577CD3 #D3AE57

analogous

#57BAD3 #577CD3 #7057D3

triadic

#577CD3 #D3577C #7CD357

tetradic

#577CD3 #D357BA #D3AE57 #57D370

square

#577CD3 #D357BA #D3AE57 #57D370

split-complementary

#577CD3 #D37057 #BAD357

monochromatic

#24438B #315ABC #577CD3 #87A2E0 #B8C8EC

Accessibility & contrast

On white

4.02

#577CD3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.23

#577CD3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577CD3

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577CD3	#FFFFFF	#000000	##000000
##577CD3	1.00	4.02	5.23	5.23
#FFFFFF	4.02	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)

#5685D6

Deuteranopia (green-blind)

#457AD1

Tritanopia (blue-blind)

#008F9D

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #577cd3;
/* rgb */ color: rgb(87, 124, 211);
/* oklch */ color: oklch(60.0% 0.139 265.1);

Tailwind

colors: {
  custom: {
    50: '#90a1e1',
    500: '#577cd3',
    950: '#000000',
  },
}

SCSS

$custom: #577cd3;
$custom-light: #90a1e1;
$custom-dark: #000000;

JSON

{
  "hex": "#577cd3",
  "rgb": {
    "r": 87,
    "g": 124,
    "b": 211
  },
  "hsl": {
    "h": 222.097,
    "s": 58.491,
    "l": 58.431
  },
  "oklch": {
    "l": 0.60022,
    "c": 0.13933,
    "h": 265.1
  },
  "luminance": 0.21145
}

Semantic roles & 50–950 ramp

primary

#577CD3

secondary

#DCCDAA

accent

#B346E2

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #577CD3

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

Preview Lab → · Contrast checker → · Palette generator →