#577CE7#577CE7

#577CE7 is a mid, vivid blue. Relative luminance 0.222; OKLCH L 61.3% C 0.167 H 267.1°. Best body text is #000000 at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#577CE7
RGB	rgb(87, 124, 231)
HSL	hsl(225, 75%, 62%)
HSV	hsv(225, 62%, 91%)
CMYK	cmyk(62.3%, 46.3%, 0%, 9.4%)
CIE-LAB	lab(54.25, 19.93, -58.24)
CIE-LCH	lch(54.25, 61.55, 288.89°)
OKLab	oklab(61.27% -0.0085 -0.1665)
OKLCH	oklch(61.27% 0.167 267.1)
XYZ	xyz(25.5570, 22.2088, 78.5257)
Luminance	0.2221 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577CE7 #E7C257

analogous

#57C4E7 #577CE7 #7A57E7

triadic

#577CE7 #E7577C #7CE757

tetradic

#577CE7 #E757C4 #E7C257 #57E77A

square

#577CE7 #E757C4 #E7C257 #57E77A

split-complementary

#577CE7 #E77A57 #C4E757

monochromatic

#183EAB #2152DF #577CE7 #8DA6EF #C2D0F6

Accessibility & contrast

On white

3.86

#577CE7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.44

#577CE7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577CE7

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577CE7	#FFFFFF	#000000	##000000
##577CE7	1.00	3.86	5.44	5.44
#FFFFFF	3.86	1.00	21.00	21.00
#000000	5.44	21.00	1.00	1.00
##000000	5.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4789EB

Deuteranopia (green-blind)

#2D7CE5

Tritanopia (blue-blind)

#0094A6

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #577ce7;
/* rgb */ color: rgb(87, 124, 231);
/* oklch */ color: oklch(61.3% 0.167 267.1);

Tailwind

colors: {
  custom: {
    50: '#93a1ef',
    500: '#577ce7',
    950: '#000000',
  },
}

SCSS

$custom: #577ce7;
$custom-light: #93a1ef;
$custom-dark: #000000;

JSON

{
  "hex": "#577ce7",
  "rgb": {
    "r": 87,
    "g": 124,
    "b": 231
  },
  "hsl": {
    "h": 224.583,
    "s": 75,
    "l": 62.353
  },
  "oklch": {
    "l": 0.61268,
    "c": 0.16671,
    "h": 267.1
  },
  "luminance": 0.22211
}

Semantic roles & 50–950 ramp

primary

#577CE7

secondary

#E7DAB3

accent

#A40ED7

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #577CE7

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

Preview Lab → · Contrast checker → · Palette generator →