#577DD8#577DD8

#577DD8 is a mid, vivid blue. Relative luminance 0.217; OKLCH L 60.5% C 0.145 H 265.3°. Best body text is #000000 at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#577DD8
RGB	rgb(87, 125, 216)
HSL	hsl(222, 62%, 59%)
HSV	hsv(222, 60%, 85%)
CMYK	cmyk(59.7%, 42.1%, 0%, 15.3%)
CIE-LAB	lab(53.65, 14.28, -50.77)
CIE-LCH	lch(53.65, 52.74, 285.71°)
OKLab	oklab(60.53% -0.012 -0.1445)
OKLCH	oklch(60.53% 0.145 265.3)
XYZ	xyz(23.6545, 21.6493, 67.8846)
Luminance	0.2165 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577DD8 #D8B257

analogous

#57BDD8 #577DD8 #7257D8

triadic

#577DD8 #D8577D #7DD857

tetradic

#577DD8 #D857BD #D8B257 #57D872

square

#577DD8 #D857BD #D8B257 #57D872

split-complementary

#577DD8 #D87257 #BDD857

monochromatic

#224393 #2E5AC4 #577DD8 #89A3E4 #BACAEF

Accessibility & contrast

On white

3.94

#577DD8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.33

#577DD8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577DD8

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577DD8	#FFFFFF	#000000	##000000
##577DD8	1.00	3.94	5.33	5.33
#FFFFFF	3.94	1.00	21.00	21.00
#000000	5.33	21.00	1.00	1.00
##000000	5.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5486DC

Deuteranopia (green-blind)

#427BD6

Tritanopia (blue-blind)

#0091A0

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #577dd8;
/* rgb */ color: rgb(87, 125, 216);
/* oklch */ color: oklch(60.5% 0.145 265.3);

Tailwind

colors: {
  custom: {
    50: '#91a2e4',
    500: '#577dd8',
    950: '#000000',
  },
}

SCSS

$custom: #577dd8;
$custom-light: #91a2e4;
$custom-dark: #000000;

JSON

{
  "hex": "#577dd8",
  "rgb": {
    "r": 87,
    "g": 125,
    "b": 216
  },
  "hsl": {
    "h": 222.326,
    "s": 62.319,
    "l": 59.412
  },
  "oklch": {
    "l": 0.60533,
    "c": 0.14502,
    "h": 265.3
  },
  "luminance": 0.21651
}

Semantic roles & 50–950 ramp

primary

#577DD8

secondary

#DFD0AC

accent

#B542E5

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #577DD8

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

Preview Lab → · Contrast checker → · Palette generator →