#577FEE#577FEE

#577FEE is a light, vivid blue. Relative luminance 0.234; OKLCH L 62.3% C 0.173 H 266.5°. Best body text is #000000 at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#577FEE
RGB	rgb(87, 127, 238)
HSL	hsl(224, 82%, 64%)
HSV	hsv(224, 63%, 93%)
CMYK	cmyk(63.4%, 46.6%, 0%, 6.7%)
CIE-LAB	lab(55.46, 20.46, -60.20)
CIE-LCH	lch(55.46, 63.58, 288.77°)
OKLab	oklab(62.33% -0.0104 -0.1722)
OKLCH	oklch(62.33% 0.173 266.5)
XYZ	xyz(26.9472, 23.3756, 83.9642)
Luminance	0.2338 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577FEE #EEC657

analogous

#57CAEE #577FEE #7A57EE

triadic

#577FEE #EE577F #7FEE57

tetradic

#577FEE #EE57CA #EEC657 #57EE7A

square

#577FEE #EE57CA #EEC657 #57EE7A

split-complementary

#577FEE #EE7A57 #CAEE57

monochromatic

#133EB8 #1F55E8 #577FEE #8FA9F4 #C6D4F9

Accessibility & contrast

On white

3.70

#577FEE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.68

#577FEE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577FEE

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577FEE	#FFFFFF	#000000	##000000
##577FEE	1.00	3.70	5.68	5.68
#FFFFFF	3.70	1.00	21.00	21.00
#000000	5.68	21.00	1.00	1.00
##000000	5.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#478CF2

Deuteranopia (green-blind)

#2A7EEC

Tritanopia (blue-blind)

#0099AB

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #577fee;
/* rgb */ color: rgb(87, 127, 238);
/* oklch */ color: oklch(62.3% 0.173 266.5);

Tailwind

colors: {
  custom: {
    50: '#94a3f4',
    500: '#577fee',
    950: '#000000',
  },
}

SCSS

$custom: #577fee;
$custom-light: #94a3f4;
$custom-dark: #000000;

JSON

{
  "hex": "#577fee",
  "rgb": {
    "r": 87,
    "g": 127,
    "b": 238
  },
  "hsl": {
    "h": 224.106,
    "s": 81.622,
    "l": 63.725
  },
  "oklch": {
    "l": 0.62326,
    "c": 0.17254,
    "h": 266.5
  },
  "luminance": 0.23378
}

Semantic roles & 50–950 ramp

primary

#577FEE

secondary

#EBDDB6

accent

#A508DE

background

#F9FAFF

surface

#F2F3FE

border

#CCCDD6

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #577FEE

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

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