#5771EB#5771EB

#5771EB is a mid, vivid blue. Relative luminance 0.198; OKLCH L 59.4% C 0.186 H 270.7°. Best body text is #000000 at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#5771EB
RGB	rgb(87, 113, 235)
HSL	hsl(229, 79%, 63%)
HSV	hsv(229, 63%, 92%)
CMYK	cmyk(63%, 51.9%, 0%, 7.8%)
CIE-LAB	lab(51.65, 28.03, -64.66)
CIE-LCH	lch(51.65, 70.48, 293.44°)
OKLab	oklab(59.37% 0.0023 -0.1855)
OKLCH	oklch(59.37% 0.186 270.7)
XYZ	xyz(24.8260, 19.8325, 81.1009)
Luminance	0.1983 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5771EB #EBD157

analogous

#57BBEB #5771EB #8757EB

triadic

#5771EB #EB5771 #71EB57

tetradic

#5771EB #EB57BB #EBD157 #57EB87

square

#5771EB #EB57BB #EBD157 #57EB87

split-complementary

#5771EB #EB8757 #BBEB57

monochromatic

#1531B2 #2043E4 #5771EB #8E9FF2 #C4CDF8

Accessibility & contrast

On white

4.23

#5771EB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.97

#5771EB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5771EB

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5771EB	#FFFFFF	#000000	##000000
##5771EB	1.00	4.23	4.97	4.97
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.97	21.00	1.00	1.00
##000000	4.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2582EF

Deuteranopia (green-blind)

#0075E8

Tritanopia (blue-blind)

#008EA3

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #5771eb;
/* rgb */ color: rgb(87, 113, 235);
/* oklch */ color: oklch(59.4% 0.186 270.7);

Tailwind

colors: {
  custom: {
    50: '#9499f2',
    500: '#5771eb',
    950: '#000000',
  },
}

SCSS

$custom: #5771eb;
$custom-light: #9499f2;
$custom-dark: #000000;

JSON

{
  "hex": "#5771eb",
  "rgb": {
    "r": 87,
    "g": 113,
    "b": 235
  },
  "hsl": {
    "h": 229.459,
    "s": 78.723,
    "l": 63.137
  },
  "oklch": {
    "l": 0.59374,
    "c": 0.18554,
    "h": 270.7
  },
  "luminance": 0.19835
}

Semantic roles & 50–950 ramp

primary

#5771EB

secondary

#E9E0B4

accent

#B60ADB

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0D17

muted

#7E7E85

Preview Lab

Preview with #5771EB

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

Preview Lab → · Contrast checker → · Palette generator →