#577DD2#577DD2

#577DD2 is a mid, vivid blue. Relative luminance 0.213; OKLCH L 60.2% C 0.137 H 264.5°. Best body text is #000000 at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#577DD2
RGB	rgb(87, 125, 210)
HSL	hsl(221, 58%, 58%)
HSV	hsv(221, 59%, 82%)
CMYK	cmyk(58.6%, 40.5%, 0%, 17.6%)
CIE-LAB	lab(53.32, 12.28, -47.90)
CIE-LCH	lch(53.32, 49.45, 284.38°)
OKLab	oklab(60.17% -0.0131 -0.1361)
OKLCH	oklch(60.17% 0.137 264.5)
XYZ	xyz(22.8930, 21.3447, 63.8738)
Luminance	0.2135 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577DD2 #D2AC57

analogous

#57BBD2 #577DD2 #6E57D2

triadic

#577DD2 #D2577D #7DD257

tetradic

#577DD2 #D257BB #D2AC57 #57D26E

square

#577DD2 #D257BB #D2AC57 #57D26E

split-complementary

#577DD2 #D26E57 #BBD257

monochromatic

#25448A #325CBA #577DD2 #87A2DF #B8C8EC

Accessibility & contrast

On white

3.99

#577DD2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.27

#577DD2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577DD2

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577DD2	#FFFFFF	#000000	##000000
##577DD2	1.00	3.99	5.27	5.27
#FFFFFF	3.99	1.00	21.00	21.00
#000000	5.27	21.00	1.00	1.00
##000000	5.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5885D5

Deuteranopia (green-blind)

#487AD0

Tritanopia (blue-blind)

#00909D

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #577dd2;
/* rgb */ color: rgb(87, 125, 210);
/* oklch */ color: oklch(60.2% 0.137 264.5);

Tailwind

colors: {
  custom: {
    50: '#90a2e0',
    500: '#577dd2',
    950: '#000000',
  },
}

SCSS

$custom: #577dd2;
$custom-light: #90a2e0;
$custom-dark: #000000;

JSON

{
  "hex": "#577dd2",
  "rgb": {
    "r": 87,
    "g": 125,
    "b": 210
  },
  "hsl": {
    "h": 221.463,
    "s": 57.746,
    "l": 58.235
  },
  "oklch": {
    "l": 0.60173,
    "c": 0.13675,
    "h": 264.5
  },
  "luminance": 0.21347
}

Semantic roles & 50–950 ramp

primary

#577DD2

secondary

#DBCCAA

accent

#B147E1

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #577DD2

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

Preview Lab → · Contrast checker → · Palette generator →