#5171EA#5171EA

#5171EA is a mid, vivid blue. Relative luminance 0.195; OKLCH L 59.0% C 0.186 H 268.9°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#5171EA
RGB	rgb(81, 113, 234)
HSL	hsl(227, 78%, 62%)
HSV	hsv(227, 65%, 92%)
CMYK	cmyk(65.4%, 51.7%, 0%, 8.2%)
CIE-LAB	lab(51.26, 26.73, -64.74)
CIE-LCH	lch(51.26, 70.04, 292.44°)
OKLab	oklab(58.98% -0.0035 -0.1859)
OKLCH	oklch(58.98% 0.186 268.9)
XYZ	xyz(24.1447, 19.4979, 80.3170)
Luminance	0.1950 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5171EA #EACA51

analogous

#51BEEA #5171EA #7E51EA

triadic

#5171EA #EA5171 #71EA51

tetradic

#5171EA #EA51BE #EACA51 #51EA7E

square

#5171EA #EA51BE #EACA51 #51EA7E

split-complementary

#5171EA #EA7E51 #BEEA51

monochromatic

#1534AC #1B45E2 #5171EA #889EF1 #BECAF7

Accessibility & contrast

On white

4.29

#5171EA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#5171EA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5171EA

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5171EA	#FFFFFF	#000000	##000000
##5171EA	1.00	4.29	4.90	4.90
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.90	21.00	1.00	1.00
##000000	4.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2481EE

Deuteranopia (green-blind)

#0074E8

Tritanopia (blue-blind)

#008EA3

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #5171ea;
/* rgb */ color: rgb(81, 113, 234);
/* oklch */ color: oklch(59.0% 0.186 268.9);

Tailwind

colors: {
  custom: {
    50: '#9199f1',
    500: '#5171ea',
    950: '#000000',
  },
}

SCSS

$custom: #5171ea;
$custom-light: #9199f1;
$custom-dark: #000000;

JSON

{
  "hex": "#5171ea",
  "rgb": {
    "r": 81,
    "g": 113,
    "b": 234
  },
  "hsl": {
    "h": 227.451,
    "s": 78.462,
    "l": 61.765
  },
  "oklch": {
    "l": 0.58979,
    "c": 0.1859,
    "h": 268.9
  },
  "luminance": 0.195
}

Semantic roles & 50–950 ramp

primary

#5171EA

secondary

#E8DCAF

accent

#AF0BDB

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0D17

muted

#7E7E85

Preview Lab

Preview with #5171EA

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

Preview Lab → · Contrast checker → · Palette generator →