#5171DE#5171DE

#5171DE is a mid, vivid blue. Relative luminance 0.188; OKLCH L 58.1% C 0.170 H 268.4°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#5171DE
RGB	rgb(81, 113, 222)
HSL	hsl(226, 68%, 59%)
HSV	hsv(226, 64%, 87%)
CMYK	cmyk(63.5%, 49.1%, 0%, 12.9%)
CIE-LAB	lab(50.49, 22.61, -59.24)
CIE-LCH	lch(50.49, 63.41, 290.89°)
OKLab	oklab(58.14% -0.0047 -0.1697)
OKLCH	oklch(58.14% 0.17 268.4)
XYZ	xyz(22.4788, 18.8315, 71.5433)
Luminance	0.1883 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5171DE #DEBE51

analogous

#51B8DE #5171DE #7851DE

triadic

#5171DE #DE5171 #71DE51

tetradic

#5171DE #DE51B8 #DEBE51 #51DE78

square

#5171DE #DE51B8 #DEBE51 #51DE78

split-complementary

#5171DE #DE7851 #B8DE51

monochromatic

#1D3998 #274CCB #5171DE #849BE8 #B8C5F2

Accessibility & contrast

On white

4.41

#5171DE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#5171DE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5171DE

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5171DE	#FFFFFF	#000000	##000000
##5171DE	1.00	4.41	4.77	4.77
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.77	21.00	1.00	1.00
##000000	4.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#367FE2

Deuteranopia (green-blind)

#1172DC

Tritanopia (blue-blind)

#008A9D

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #5171de;
/* rgb */ color: rgb(81, 113, 222);
/* oklch */ color: oklch(58.1% 0.170 268.4);

Tailwind

colors: {
  custom: {
    50: '#8f99e9',
    500: '#5171de',
    950: '#000000',
  },
}

SCSS

$custom: #5171de;
$custom-light: #8f99e9;
$custom-dark: #000000;

JSON

{
  "hex": "#5171de",
  "rgb": {
    "r": 81,
    "g": 113,
    "b": 222
  },
  "hsl": {
    "h": 226.383,
    "s": 68.116,
    "l": 59.412
  },
  "oklch": {
    "l": 0.58144,
    "c": 0.16976,
    "h": 268.4
  },
  "luminance": 0.18834
}

Semantic roles & 50–950 ramp

primary

#5171DE

secondary

#E1D4AA

accent

#C33DEB

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #5171DE

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

Preview Lab → · Contrast checker → · Palette generator →