#5170CE#5170CE

#5170CE is a mid, vivid blue. Relative luminance 0.178; OKLCH L 56.9% C 0.149 H 267.8°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#5170CE
RGB	rgb(81, 112, 206)
HSL	hsl(225, 56%, 56%)
HSV	hsv(225, 61%, 81%)
CMYK	cmyk(60.7%, 45.6%, 0%, 19.2%)
CIE-LAB	lab(49.24, 17.77, -52.16)
CIE-LCH	lch(49.24, 55.10, 288.82°)
OKLab	oklab(56.88% -0.0058 -0.1489)
OKLCH	oklch(56.88% 0.149 267.8)
XYZ	xyz(20.3243, 17.7922, 60.7437)
Luminance	0.1779 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5170CE #CEAF51

analogous

#51AFCE #5170CE #7151CE

triadic

#5170CE #CE5170 #70CE51

tetradic

#5170CE #CE51AF #CEAF51 #51CE71

square

#5170CE #CE51AF #CEAF51 #51CE71

split-complementary

#5170CE #CE7151 #AFCE51

monochromatic

#243B80 #3251B0 #5170CE #8197DB #B1BEE9

Accessibility & contrast

On white

4.61

#5170CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#5170CE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #5170CE

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5170CE	#FFFFFF	#000000	##FFFFFF
##5170CE	1.00	4.61	4.56	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#437BD2

Deuteranopia (green-blind)

#2F70CC

Tritanopia (blue-blind)

#008595

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #5170ce;
/* rgb */ color: rgb(81, 112, 206);
/* oklch */ color: oklch(56.9% 0.149 267.8);

Tailwind

colors: {
  custom: {
    50: '#8d98dd',
    500: '#5170ce',
    950: '#000000',
  },
}

SCSS

$custom: #5170ce;
$custom-light: #8d98dd;
$custom-dark: #000000;

JSON

{
  "hex": "#5170ce",
  "rgb": {
    "r": 81,
    "g": 112,
    "b": 206
  },
  "hsl": {
    "h": 225.12,
    "s": 56.054,
    "l": 56.275
  },
  "oklch": {
    "l": 0.56879,
    "c": 0.14899,
    "h": 267.8
  },
  "luminance": 0.17794
}

Semantic roles & 50–950 ramp

primary

#5170CE

secondary

#D7CAA4

accent

#BA48DF

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #5170CE

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

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