#577AEA#577AEA

#577AEA is a mid, vivid blue. Relative luminance 0.219; OKLCH L 61.1% C 0.173 H 267.9°. Best body text is #000000 at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#577AEA
RGB	rgb(87, 122, 234)
HSL	hsl(226, 78%, 63%)
HSV	hsv(226, 63%, 92%)
CMYK	cmyk(62.8%, 47.9%, 0%, 8.2%)
CIE-LAB	lab(53.90, 22.17, -60.47)
CIE-LCH	lch(53.90, 64.40, 290.13°)
OKLab	oklab(61.06% -0.0062 -0.1731)
OKLCH	oklch(61.06% 0.173 267.9)
XYZ	xyz(25.7362, 21.8835, 80.6936)
Luminance	0.2189 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577AEA #EAC757

analogous

#57C4EA #577AEA #7D57EA

triadic

#577AEA #EA577A #7AEA57

tetradic

#577AEA #EA57C4 #EAC757 #57EA7D

square

#577AEA #EA57C4 #EAC757 #57EA7D

split-complementary

#577AEA #EA7D57 #C4EA57

monochromatic

#163BB1 #214FE3 #577AEA #8DA5F1 #C4D0F8

Accessibility & contrast

On white

3.91

#577AEA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.38

#577AEA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577AEA

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577AEA	#FFFFFF	#000000	##000000
##577AEA	1.00	3.91	5.38	5.38
#FFFFFF	3.91	1.00	21.00	21.00
#000000	5.38	21.00	1.00	1.00
##000000	5.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4088EE

Deuteranopia (green-blind)

#217BE8

Tritanopia (blue-blind)

#0094A7

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #577aea;
/* rgb */ color: rgb(87, 122, 234);
/* oklch */ color: oklch(61.1% 0.173 267.9);

Tailwind

colors: {
  custom: {
    50: '#94a0f1',
    500: '#577aea',
    950: '#000000',
  },
}

SCSS

$custom: #577aea;
$custom-light: #94a0f1;
$custom-dark: #000000;

JSON

{
  "hex": "#577aea",
  "rgb": {
    "r": 87,
    "g": 122,
    "b": 234
  },
  "hsl": {
    "h": 225.714,
    "s": 77.778,
    "l": 62.941
  },
  "oklch": {
    "l": 0.61063,
    "c": 0.17318,
    "h": 267.9
  },
  "luminance": 0.21886
}

Semantic roles & 50–950 ramp

primary

#577AEA

secondary

#E9DCB4

accent

#A90BDA

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #577AEA

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

Preview Lab → · Contrast checker → · Palette generator →