#577BD6#577BD6

#577BD6 is a mid, vivid blue. Relative luminance 0.210; OKLCH L 60.0% C 0.145 H 265.9°. Best body text is #000000 at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#577BD6
RGB	rgb(87, 123, 214)
HSL	hsl(223, 61%, 59%)
HSV	hsv(223, 59%, 84%)
CMYK	cmyk(59.3%, 42.5%, 0%, 16.1%)
CIE-LAB	lab(53.00, 14.83, -50.68)
CIE-LCH	lch(53.00, 52.80, 286.31°)
OKLab	oklab(59.99% -0.0102 -0.1443)
OKLCH	oklch(59.99% 0.145 265.9)
XYZ	xyz(23.1469, 21.0453, 66.4476)
Luminance	0.2105 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577BD6 #D6B257

analogous

#57BBD6 #577BD6 #7357D6

triadic

#577BD6 #D6577B #7BD657

tetradic

#577BD6 #D657BB #D6B257 #57D673

square

#577BD6 #D657BB #D6B257 #57D673

split-complementary

#577BD6 #D67357 #BBD657

monochromatic

#234290 #2F58C1 #577BD6 #88A2E2 #B9C8EE

Accessibility & contrast

On white

4.03

#577BD6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.21

#577BD6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577BD6

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577BD6	#FFFFFF	#000000	##000000
##577BD6	1.00	4.03	5.21	5.21
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.21	21.00	1.00	1.00
##000000	5.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5285DA

Deuteranopia (green-blind)

#4179D4

Tritanopia (blue-blind)

#008F9E

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #577bd6;
/* rgb */ color: rgb(87, 123, 214);
/* oklch */ color: oklch(60.0% 0.145 265.9);

Tailwind

colors: {
  custom: {
    50: '#90a0e3',
    500: '#577bd6',
    950: '#000000',
  },
}

SCSS

$custom: #577bd6;
$custom-light: #90a0e3;
$custom-dark: #000000;

JSON

{
  "hex": "#577bd6",
  "rgb": {
    "r": 87,
    "g": 123,
    "b": 214
  },
  "hsl": {
    "h": 222.992,
    "s": 60.766,
    "l": 59.02
  },
  "oklch": {
    "l": 0.59994,
    "c": 0.14466,
    "h": 265.9
  },
  "luminance": 0.21047
}

Semantic roles & 50–950 ramp

primary

#577BD6

secondary

#DDCFAB

accent

#B744E4

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0E15

muted

#7E7E83

Preview Lab

Preview with #577BD6

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

Preview Lab → · Contrast checker → · Palette generator →