#5170EF#5170EF

#5170EF is a mid, vivid blue. Relative luminance 0.196; OKLCH L 59.1% C 0.194 H 269.3°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#5170EF
RGB	rgb(81, 112, 239)
HSL	hsl(228, 83%, 63%)
HSV	hsv(228, 66%, 94%)
CMYK	cmyk(66.1%, 53.1%, 0%, 6.3%)
CIE-LAB	lab(51.34, 29.06, -67.40)
CIE-LCH	lch(51.34, 73.40, 293.32°)
OKLab	oklab(59.15% -0.0023 -0.1937)
OKLCH	oklch(59.15% 0.194 269.3)
XYZ	xyz(24.7622, 19.5673, 84.1165)
Luminance	0.1957 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5170EF #EFD051

analogous

#51BFEF #5170EF #8151EF

triadic

#5170EF #EF5170 #70EF51

tetradic

#5170EF #EF51BF #EFD051 #51EF81

square

#5170EF #EF51BF #EFD051 #51EF81

split-complementary

#5170EF #EF8151 #BFEF51

monochromatic

#1131B5 #1942EA #5170EF #899EF4 #C1CCF9

Accessibility & contrast

On white

4.27

#5170EF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#5170EF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5170EF

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5170EF	#FFFFFF	#000000	##000000
##5170EF	1.00	4.27	4.91	4.91
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.91	21.00	1.00	1.00
##000000	4.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1282F3

Deuteranopia (green-blind)

#0073EC

Tritanopia (blue-blind)

#008EA5

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #5170ef;
/* rgb */ color: rgb(81, 112, 239);
/* oklch */ color: oklch(59.1% 0.194 269.3);

Tailwind

colors: {
  custom: {
    50: '#9298f5',
    500: '#5170ef',
    950: '#000000',
  },
}

SCSS

$custom: #5170ef;
$custom-light: #9298f5;
$custom-dark: #000000;

JSON

{
  "hex": "#5170ef",
  "rgb": {
    "r": 81,
    "g": 112,
    "b": 239
  },
  "hsl": {
    "h": 228.228,
    "s": 83.158,
    "l": 62.745
  },
  "oklch": {
    "l": 0.59146,
    "c": 0.19375,
    "h": 269.3
  },
  "luminance": 0.1957
}

Semantic roles & 50–950 ramp

primary

#5170EF

secondary

#EADFB1

accent

#B506E0

background

#F9F9FF

surface

#F2F2FE

border

#CCCCD6

text

#0E0D17

muted

#7E7E85

Preview Lab

Preview with #5170EF

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

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