#577DD4#577DD4

#577DD4 is a mid, vivid blue. Relative luminance 0.214; OKLCH L 60.3% C 0.140 H 264.8°. Best body text is #000000 at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#577DD4
RGB	rgb(87, 125, 212)
HSL	hsl(222, 59%, 59%)
HSV	hsv(222, 59%, 83%)
CMYK	cmyk(59%, 41%, 0%, 16.9%)
CIE-LAB	lab(53.43, 12.94, -48.86)
CIE-LCH	lch(53.43, 50.54, 284.84°)
OKLab	oklab(60.29% -0.0127 -0.1389)
OKLCH	oklch(60.29% 0.14 264.8)
XYZ	xyz(23.1437, 21.4450, 65.1943)
Luminance	0.2145 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577DD4 #D4AE57

analogous

#57BBD4 #577DD4 #6F57D4

triadic

#577DD4 #D4577D #7DD457

tetradic

#577DD4 #D457BB #D4AE57 #57D46F

square

#577DD4 #D457BB #D4AE57 #57D46F

split-complementary

#577DD4 #D46F57 #BBD457

monochromatic

#24448D #305BBD #577DD4 #88A3E0 #B8C8ED

Accessibility & contrast

On white

3.97

#577DD4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.29

#577DD4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577DD4

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577DD4	#FFFFFF	#000000	##000000
##577DD4	1.00	3.97	5.29	5.29
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.29	21.00	1.00	1.00
##000000	5.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5786D7

Deuteranopia (green-blind)

#467AD2

Tritanopia (blue-blind)

#00909E

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #577dd4;
/* rgb */ color: rgb(87, 125, 212);
/* oklch */ color: oklch(60.3% 0.140 264.8);

Tailwind

colors: {
  custom: {
    50: '#90a2e2',
    500: '#577dd4',
    950: '#000000',
  },
}

SCSS

$custom: #577dd4;
$custom-light: #90a2e2;
$custom-dark: #000000;

JSON

{
  "hex": "#577dd4",
  "rgb": {
    "r": 87,
    "g": 125,
    "b": 212
  },
  "hsl": {
    "h": 221.76,
    "s": 59.242,
    "l": 58.627
  },
  "oklch": {
    "l": 0.60292,
    "c": 0.13951,
    "h": 264.8
  },
  "luminance": 0.21447
}

Semantic roles & 50–950 ramp

primary

#577DD4

secondary

#DCCDAB

accent

#B345E2

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #577DD4

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

Preview Lab → · Contrast checker → · Palette generator →