#577EE1#577EE1

#577EE1 is a mid, vivid blue. Relative luminance 0.224; OKLCH L 61.3% C 0.156 H 265.8°. Best body text is #000000 at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#577EE1
RGB	rgb(87, 126, 225)
HSL	hsl(223, 70%, 61%)
HSV	hsv(223, 61%, 88%)
CMYK	cmyk(61.3%, 44%, 0%, 11.8%)
CIE-LAB	lab(54.43, 16.68, -54.59)
CIE-LCH	lch(54.43, 57.08, 287.00°)
OKLab	oklab(61.29% -0.0114 -0.1557)
OKLCH	oklch(61.29% 0.156 265.8)
XYZ	xyz(24.9773, 22.3820, 74.2235)
Luminance	0.2238 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577EE1 #E1BA57

analogous

#57C3E1 #577EE1 #7557E1

triadic

#577EE1 #E1577E #7EE157

tetradic

#577EE1 #E157C3 #E1BA57 #57E175

square

#577EE1 #E157C3 #E1BA57 #57E175

split-complementary

#577EE1 #E17557 #C3E157

monochromatic

#1D42A1 #2657D5 #577EE1 #8BA6EA #BFCEF4

Accessibility & contrast

On white

3.83

#577EE1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.48

#577EE1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577EE1

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577EE1	#FFFFFF	#000000	##000000
##577EE1	1.00	3.83	5.48	5.48
#FFFFFF	3.83	1.00	21.00	21.00
#000000	5.48	21.00	1.00	1.00
##000000	5.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5089E5

Deuteranopia (green-blind)

#3A7CDF

Tritanopia (blue-blind)

#0094A4

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #577ee1;
/* rgb */ color: rgb(87, 126, 225);
/* oklch */ color: oklch(61.3% 0.156 265.8);

Tailwind

colors: {
  custom: {
    50: '#92a2eb',
    500: '#577ee1',
    950: '#000000',
  },
}

SCSS

$custom: #577ee1;
$custom-light: #92a2eb;
$custom-dark: #000000;

JSON

{
  "hex": "#577ee1",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 225
  },
  "hsl": {
    "h": 223.043,
    "s": 69.697,
    "l": 61.176
  },
  "oklch": {
    "l": 0.61294,
    "c": 0.15615,
    "h": 265.8
  },
  "luminance": 0.22384
}

Semantic roles & 50–950 ramp

primary

#577EE1

secondary

#E4D5B0

accent

#9C14D2

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #577EE1

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

Preview Lab → · Contrast checker → · Palette generator →