#577FED#577FED

#577FED is a light, vivid blue. Relative luminance 0.233; OKLCH L 62.3% C 0.171 H 266.5°. Best body text is #000000 at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#577FED
RGB	rgb(87, 127, 237)
HSL	hsl(224, 81%, 64%)
HSV	hsv(224, 63%, 93%)
CMYK	cmyk(63.3%, 46.4%, 0%, 7.1%)
CIE-LAB	lab(55.40, 20.13, -59.74)
CIE-LCH	lch(55.40, 63.04, 288.62°)
OKLab	oklab(62.26% -0.0106 -0.1709)
OKLCH	oklch(62.26% 0.171 266.5)
XYZ	xyz(26.8007, 23.3170, 83.1926)
Luminance	0.2332 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577FED #EDC557

analogous

#57CAED #577FED #7A57ED

triadic

#577FED #ED577F #7FED57

tetradic

#577FED #ED57CA #EDC557 #57ED7A

square

#577FED #ED57CA #EDC557 #57ED7A

split-complementary

#577FED #ED7A57 #CAED57

monochromatic

#143FB6 #2055E7 #577FED #8EA9F3 #C6D3F9

Accessibility & contrast

On white

3.71

#577FED on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.66

#577FED on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577FED

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577FED	#FFFFFF	#000000	##000000
##577FED	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)

#488CF1

Deuteranopia (green-blind)

#2B7EEB

Tritanopia (blue-blind)

#0098AA

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #577fed;
/* rgb */ color: rgb(87, 127, 237);
/* oklch */ color: oklch(62.3% 0.171 266.5);

Tailwind

colors: {
  custom: {
    50: '#94a3f3',
    500: '#577fed',
    950: '#000000',
  },
}

SCSS

$custom: #577fed;
$custom-light: #94a3f3;
$custom-dark: #000000;

JSON

{
  "hex": "#577fed",
  "rgb": {
    "r": 87,
    "g": 127,
    "b": 237
  },
  "hsl": {
    "h": 224,
    "s": 80.645,
    "l": 63.529
  },
  "oklch": {
    "l": 0.62261,
    "c": 0.1712,
    "h": 266.5
  },
  "luminance": 0.23319
}

Semantic roles & 50–950 ramp

primary

#577FED

secondary

#EADCB5

accent

#A409DD

background

#F9FAFE

surface

#F2F3FD

border

#CCCDD5

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #577FED

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

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