#577EE7#577EE7

#577EE7 is a mid, vivid blue. Relative luminance 0.227; OKLCH L 61.7% C 0.164 H 266.3°. Best body text is #000000 at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#577EE7
RGB	rgb(87, 126, 231)
HSL	hsl(224, 75%, 62%)
HSV	hsv(224, 62%, 91%)
CMYK	cmyk(62.3%, 45.5%, 0%, 9.4%)
CIE-LAB	lab(54.78, 18.71, -57.39)
CIE-LCH	lch(54.78, 60.36, 288.05°)
OKLab	oklab(61.67% -0.0105 -0.164)
OKLCH	oklch(61.67% 0.164 266.3)
XYZ	xyz(25.8102, 22.7152, 78.6101)
Luminance	0.2272 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577EE7 #E7C057

analogous

#57C6E7 #577EE7 #7857E7

triadic

#577EE7 #E7577E #7EE757

tetradic

#577EE7 #E757C6 #E7C057 #57E778

square

#577EE7 #E757C6 #E7C057 #57E778

split-complementary

#577EE7 #E77857 #C6E757

monochromatic

#1840AB #2155DF #577EE7 #8DA7EF #C2D0F6

Accessibility & contrast

On white

3.79

#577EE7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.54

#577EE7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577EE7

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577EE7	#FFFFFF	#000000	##000000
##577EE7	1.00	3.79	5.54	5.54
#FFFFFF	3.79	1.00	21.00	21.00
#000000	5.54	21.00	1.00	1.00
##000000	5.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B8AEB

Deuteranopia (green-blind)

#327DE5

Tritanopia (blue-blind)

#0096A7

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #577ee7;
/* rgb */ color: rgb(87, 126, 231);
/* oklch */ color: oklch(61.7% 0.164 266.3);

Tailwind

colors: {
  custom: {
    50: '#93a2ef',
    500: '#577ee7',
    950: '#000000',
  },
}

SCSS

$custom: #577ee7;
$custom-light: #93a2ef;
$custom-dark: #000000;

JSON

{
  "hex": "#577ee7",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 231
  },
  "hsl": {
    "h": 223.75,
    "s": 75,
    "l": 62.353
  },
  "oklch": {
    "l": 0.61673,
    "c": 0.1643,
    "h": 266.3
  },
  "luminance": 0.22717
}

Semantic roles & 50–950 ramp

primary

#577EE7

secondary

#E7D9B3

accent

#A10ED7

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #577EE7

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

Preview Lab → · Contrast checker → · Palette generator →