#5170DE#5170DE

#5170DE is a mid, vivid blue. Relative luminance 0.186; OKLCH L 57.9% C 0.171 H 268.7°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#5170DE
RGB	rgb(81, 112, 222)
HSL	hsl(227, 68%, 59%)
HSV	hsv(227, 64%, 87%)
CMYK	cmyk(63.5%, 49.5%, 0%, 12.9%)
CIE-LAB	lab(50.23, 23.23, -59.66)
CIE-LCH	lch(50.23, 64.02, 291.28°)
OKLab	oklab(57.95% -0.0038 -0.1709)
OKLCH	oklch(57.95% 0.171 268.7)
XYZ	xyz(22.3678, 18.6096, 71.5063)
Luminance	0.1861 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5170DE #DEBF51

analogous

#51B6DE #5170DE #7951DE

triadic

#5170DE #DE5170 #70DE51

tetradic

#5170DE #DE51B6 #DEBF51 #51DE79

square

#5170DE #DE51B6 #DEBF51 #51DE79

split-complementary

#5170DE #DE7951 #B6DE51

monochromatic

#1D3898 #274BCB #5170DE #849AE8 #B8C5F2

Accessibility & contrast

On white

4.45

#5170DE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#5170DE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5170DE

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5170DE	#FFFFFF	#000000	##000000
##5170DE	1.00	4.45	4.72	4.72
#FFFFFF	4.45	1.00	21.00	21.00
#000000	4.72	21.00	1.00	1.00
##000000	4.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#337EE2

Deuteranopia (green-blind)

#0A71DC

Tritanopia (blue-blind)

#008A9C

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #5170de;
/* rgb */ color: rgb(81, 112, 222);
/* oklch */ color: oklch(57.9% 0.171 268.7);

Tailwind

colors: {
  custom: {
    50: '#8f98e9',
    500: '#5170de',
    950: '#000000',
  },
}

SCSS

$custom: #5170de;
$custom-light: #8f98e9;
$custom-dark: #000000;

JSON

{
  "hex": "#5170de",
  "rgb": {
    "r": 81,
    "g": 112,
    "b": 222
  },
  "hsl": {
    "h": 226.809,
    "s": 68.116,
    "l": 59.412
  },
  "oklch": {
    "l": 0.57945,
    "c": 0.17099,
    "h": 268.7
  },
  "luminance": 0.18612
}

Semantic roles & 50–950 ramp

primary

#5170DE

secondary

#E1D5AA

accent

#C53DEB

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #5170DE

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

Preview Lab → · Contrast checker → · Palette generator →