#5171DF#5171DF

#5171DF is a mid, vivid blue. Relative luminance 0.189; OKLCH L 58.2% C 0.171 H 268.5°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#5171DF
RGB	rgb(81, 113, 223)
HSL	hsl(226, 69%, 60%)
HSV	hsv(226, 64%, 87%)
CMYK	cmyk(63.7%, 49.3%, 0%, 12.5%)
CIE-LAB	lab(50.55, 22.96, -59.70)
CIE-LCH	lch(50.55, 63.96, 291.03°)
OKLab	oklab(58.21% -0.0046 -0.171)
OKLCH	oklch(58.21% 0.171 268.5)
XYZ	xyz(22.6132, 18.8853, 72.2513)
Luminance	0.1889 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5171DF #DFBF51

analogous

#51B8DF #5171DF #7851DF

triadic

#5171DF #DF5171 #71DF51

tetradic

#5171DF #DF51B8 #DFBF51 #51DF78

square

#5171DF #DF51B8 #DFBF51 #51DF78

split-complementary

#5171DF #DF7851 #B8DF51

monochromatic

#1C3899 #264BCD #5171DF #859BE9 #B8C5F2

Accessibility & contrast

On white

4.40

#5171DF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#5171DF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5171DF

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5171DF	#FFFFFF	#000000	##000000
##5171DF	1.00	4.40	4.78	4.78
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#357FE3

Deuteranopia (green-blind)

#0D72DD

Tritanopia (blue-blind)

#008B9D

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #5171df;
/* rgb */ color: rgb(81, 113, 223);
/* oklch */ color: oklch(58.2% 0.171 268.5);

Tailwind

colors: {
  custom: {
    50: '#8f99ea',
    500: '#5171df',
    950: '#000000',
  },
}

SCSS

$custom: #5171df;
$custom-light: #8f99ea;
$custom-dark: #000000;

JSON

{
  "hex": "#5171df",
  "rgb": {
    "r": 81,
    "g": 113,
    "b": 223
  },
  "hsl": {
    "h": 226.479,
    "s": 68.932,
    "l": 59.608
  },
  "oklch": {
    "l": 0.58213,
    "c": 0.17111,
    "h": 268.5
  },
  "luminance": 0.18887
}

Semantic roles & 50–950 ramp

primary

#5171DF

secondary

#E1D5AA

accent

#C43CEC

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #5171DF

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

Preview Lab → · Contrast checker → · Palette generator →