#577EF1#577EF1

#577EF1 is a light, vivid blue. Relative luminance 0.233; OKLCH L 62.3% C 0.178 H 267.1°. Best body text is #000000 at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#577EF1
RGB	rgb(87, 126, 241)
HSL	hsl(225, 85%, 64%)
HSV	hsv(225, 64%, 95%)
CMYK	cmyk(63.9%, 47.7%, 0%, 5.5%)
CIE-LAB	lab(55.38, 22.09, -62.00)
CIE-LCH	lch(55.38, 65.82, 289.61°)
OKLab	oklab(62.32% -0.0091 -0.1775)
OKLCH	oklch(62.32% 0.178 267.1)
XYZ	xyz(27.2631, 23.2963, 86.2619)
Luminance	0.2330 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577EF1 #F1CA57

analogous

#57CBF1 #577EF1 #7D57F1

triadic

#577EF1 #F1577E #7EF157

tetradic

#577EF1 #F157CB #F1CA57 #57F17D

square

#577EF1 #F157CB #F1CA57 #57F17D

split-complementary

#577EF1 #F17D57 #CBF157

monochromatic

#103CBE #1F53EC #577EF1 #8FA9F6 #C8D5FA

Accessibility & contrast

On white

3.71

#577EF1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.66

#577EF1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577EF1

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577EF1	#FFFFFF	#000000	##000000
##577EF1	1.00	3.71	5.66	5.66
#FFFFFF	3.71	1.00	21.00	21.00
#000000	5.66	21.00	1.00	1.00
##000000	5.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#428CF5

Deuteranopia (green-blind)

#1F7EEF

Tritanopia (blue-blind)

#0099AC

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #577ef1;
/* rgb */ color: rgb(87, 126, 241);
/* oklch */ color: oklch(62.3% 0.178 267.1);

Tailwind

colors: {
  custom: {
    50: '#95a2f6',
    500: '#577ef1',
    950: '#000000',
  },
}

SCSS

$custom: #577ef1;
$custom-light: #95a2f6;
$custom-dark: #000000;

JSON

{
  "hex": "#577ef1",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 241
  },
  "hsl": {
    "h": 224.805,
    "s": 84.615,
    "l": 64.314
  },
  "oklch": {
    "l": 0.62323,
    "c": 0.17775,
    "h": 267.1
  },
  "luminance": 0.23299
}

Semantic roles & 50–950 ramp

primary

#577EF1

secondary

#EDDFB7

accent

#A904E1

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0E0F17

muted

#7E7E85

Preview Lab

Preview with #577EF1

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

Preview Lab → · Contrast checker → · Palette generator →