#5171DC#5171DC

#5171DC is a mid, vivid blue. Relative luminance 0.187; OKLCH L 58.0% C 0.167 H 268.3°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#5171DC
RGB	rgb(81, 113, 220)
HSL	hsl(226, 67%, 59%)
HSV	hsv(226, 63%, 86%)
CMYK	cmyk(63.2%, 48.6%, 0%, 13.7%)
CIE-LAB	lab(50.36, 21.93, -58.31)
CIE-LCH	lch(50.36, 62.30, 290.61°)
OKLab	oklab(58.01% -0.0049 -0.167)
OKLCH	oklch(58.01% 0.167 268.3)
XYZ	xyz(22.2123, 18.7249, 70.1400)
Luminance	0.1873 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5171DC #DCBC51

analogous

#51B7DC #5171DC #7751DC

triadic

#5171DC #DC5171 #71DC51

tetradic

#5171DC #DC51B7 #DCBC51 #51DC77

square

#5171DC #DC51B7 #DCBC51 #51DC77

split-complementary

#5171DC #DC7751 #B7DC51

monochromatic

#1E3995 #284DC8 #5171DC #849BE6 #B7C4F0

Accessibility & contrast

On white

4.43

#5171DC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#5171DC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5171DC

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5171DC	#FFFFFF	#000000	##000000
##5171DC	1.00	4.43	4.75	4.75
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#387EE0

Deuteranopia (green-blind)

#1872DA

Tritanopia (blue-blind)

#008A9C

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #5171dc;
/* rgb */ color: rgb(81, 113, 220);
/* oklch */ color: oklch(58.0% 0.167 268.3);

Tailwind

colors: {
  custom: {
    50: '#8f99e7',
    500: '#5171dc',
    950: '#000000',
  },
}

SCSS

$custom: #5171dc;
$custom-light: #8f99e7;
$custom-dark: #000000;

JSON

{
  "hex": "#5171dc",
  "rgb": {
    "r": 81,
    "g": 113,
    "b": 220
  },
  "hsl": {
    "h": 226.187,
    "s": 66.507,
    "l": 59.02
  },
  "oklch": {
    "l": 0.58008,
    "c": 0.16703,
    "h": 268.3
  },
  "luminance": 0.18727
}

Semantic roles & 50–950 ramp

primary

#5171DC

secondary

#E0D3A9

accent

#C23EE9

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #5171DC

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

Preview Lab → · Contrast checker → · Palette generator →