#577AE5#577AE5

#577AE5 is a mid, vivid blue. Relative luminance 0.216; OKLCH L 60.7% C 0.166 H 267.6°. Best body text is #000000 at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#577AE5
RGB	rgb(87, 122, 229)
HSL	hsl(225, 73%, 62%)
HSV	hsv(225, 62%, 90%)
CMYK	cmyk(62%, 46.7%, 0%, 10.2%)
CIE-LAB	lab(53.60, 20.48, -58.16)
CIE-LCH	lch(53.60, 61.66, 289.40°)
OKLab	oklab(60.73% -0.0068 -0.1663)
OKLCH	oklch(60.73% 0.166 267.6)
XYZ	xyz(25.0280, 21.6003, 76.9639)
Luminance	0.2160 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577AE5 #E5C257

analogous

#57C1E5 #577AE5 #7B57E5

triadic

#577AE5 #E5577A #7AE557

tetradic

#577AE5 #E557C1 #E5C257 #57E57B

square

#577AE5 #E557C1 #E5C257 #57E57B

split-complementary

#577AE5 #E57B57 #C1E557

monochromatic

#1A3DA8 #2250DD #577AE5 #8CA4ED #C1CEF5

Accessibility & contrast

On white

3.95

#577AE5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.32

#577AE5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577AE5

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577AE5	#FFFFFF	#000000	##000000
##577AE5	1.00	3.95	5.32	5.32
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.32	21.00	1.00	1.00
##000000	5.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4587E9

Deuteranopia (green-blind)

#2B7AE3

Tritanopia (blue-blind)

#0092A4

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #577ae5;
/* rgb */ color: rgb(87, 122, 229);
/* oklch */ color: oklch(60.7% 0.166 267.6);

Tailwind

colors: {
  custom: {
    50: '#93a0ee',
    500: '#577ae5',
    950: '#000000',
  },
}

SCSS

$custom: #577ae5;
$custom-light: #93a0ee;
$custom-dark: #000000;

JSON

{
  "hex": "#577ae5",
  "rgb": {
    "r": 87,
    "g": 122,
    "b": 229
  },
  "hsl": {
    "h": 225.211,
    "s": 73.196,
    "l": 61.961
  },
  "oklch": {
    "l": 0.60735,
    "c": 0.16642,
    "h": 267.6
  },
  "luminance": 0.21602
}

Semantic roles & 50–950 ramp

primary

#577AE5

secondary

#E6D9B2

accent

#A510D5

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #577AE5

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

Preview Lab → · Contrast checker → · Palette generator →