#577DD0#577DD0

#577DD0 is a mid, vivid blue. Relative luminance 0.212; OKLCH L 60.1% C 0.134 H 264.2°. Best body text is #000000 at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#577DD0
RGB	rgb(87, 125, 208)
HSL	hsl(221, 56%, 58%)
HSV	hsv(221, 58%, 82%)
CMYK	cmyk(58.2%, 39.9%, 0%, 18.4%)
CIE-LAB	lab(53.22, 11.62, -46.94)
CIE-LCH	lch(53.22, 48.35, 283.90°)
OKLab	oklab(60.06% -0.0135 -0.1333)
OKLCH	oklch(60.06% 0.134 264.2)
XYZ	xyz(22.6454, 21.2457, 62.5698)
Luminance	0.2125 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577DD0 #D0AA57

analogous

#57B9D0 #577DD0 #6D57D0

triadic

#577DD0 #D0577D #7DD057

tetradic

#577DD0 #D057B9 #D0AA57 #57D06D

square

#577DD0 #D057B9 #D0AA57 #57D06D

split-complementary

#577DD0 #D06D57 #B9D057

monochromatic

#264487 #335CB7 #577DD0 #87A2DD #B7C7EB

Accessibility & contrast

On white

4.00

#577DD0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.25

#577DD0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577DD0

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577DD0	#FFFFFF	#000000	##000000
##577DD0	1.00	4.00	5.25	5.25
#FFFFFF	4.00	1.00	21.00	21.00
#000000	5.25	21.00	1.00	1.00
##000000	5.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A85D3

Deuteranopia (green-blind)

#4A7ACE

Tritanopia (blue-blind)

#008F9C

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #577dd0;
/* rgb */ color: rgb(87, 125, 208);
/* oklch */ color: oklch(60.1% 0.134 264.2);

Tailwind

colors: {
  custom: {
    50: '#90a2df',
    500: '#577dd0',
    950: '#000000',
  },
}

SCSS

$custom: #577dd0;
$custom-light: #90a2df;
$custom-dark: #000000;

JSON

{
  "hex": "#577dd0",
  "rgb": {
    "r": 87,
    "g": 125,
    "b": 208
  },
  "hsl": {
    "h": 221.157,
    "s": 56.279,
    "l": 57.843
  },
  "oklch": {
    "l": 0.60055,
    "c": 0.13399,
    "h": 264.2
  },
  "luminance": 0.21248
}

Semantic roles & 50–950 ramp

primary

#577DD0

secondary

#DACAA9

accent

#B048E0

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #577DD0

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

Preview Lab → · Contrast checker → · Palette generator →