#577ED5#577ED5

#577ED5 is a mid, vivid blue. Relative luminance 0.218; OKLCH L 60.6% C 0.140 H 264.4°. Best body text is #000000 at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#577ED5
RGB	rgb(87, 126, 213)
HSL	hsl(221, 60%, 59%)
HSV	hsv(221, 59%, 84%)
CMYK	cmyk(59.2%, 40.8%, 0%, 16.5%)
CIE-LAB	lab(53.76, 12.67, -48.90)
CIE-LCH	lch(53.76, 50.52, 284.52°)
OKLab	oklab(60.56% -0.0136 -0.139)
OKLCH	oklch(60.56% 0.14 264.4)
XYZ	xyz(23.3975, 21.7501, 65.9031)
Luminance	0.2175 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577ED5 #D5AE57

analogous

#57BDD5 #577ED5 #6F57D5

triadic

#577ED5 #D5577E #7ED557

tetradic

#577ED5 #D557BD #D5AE57 #57D56F

square

#577ED5 #D557BD #D5AE57 #57D56F

split-complementary

#577ED5 #D56F57 #BDD557

monochromatic

#24458E #305CBF #577ED5 #88A4E1 #B9C9ED

Accessibility & contrast

On white

3.92

#577ED5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.35

#577ED5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577ED5

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577ED5	#FFFFFF	#000000	##000000
##577ED5	1.00	3.92	5.35	5.35
#FFFFFF	3.92	1.00	21.00	21.00
#000000	5.35	21.00	1.00	1.00
##000000	5.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5887D8

Deuteranopia (green-blind)

#477BD3

Tritanopia (blue-blind)

#00919F

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #577ed5;
/* rgb */ color: rgb(87, 126, 213);
/* oklch */ color: oklch(60.6% 0.140 264.4);

Tailwind

colors: {
  custom: {
    50: '#90a3e2',
    500: '#577ed5',
    950: '#000000',
  },
}

SCSS

$custom: #577ed5;
$custom-light: #90a3e2;
$custom-dark: #000000;

JSON

{
  "hex": "#577ed5",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 213
  },
  "hsl": {
    "h": 221.429,
    "s": 60,
    "l": 58.824
  },
  "oklch": {
    "l": 0.60563,
    "c": 0.13971,
    "h": 264.4
  },
  "luminance": 0.21752
}

Semantic roles & 50–950 ramp

primary

#577ED5

secondary

#DDCDAB

accent

#B245E3

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #577ED5

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

Preview Lab → · Contrast checker → · Palette generator →