#5170EB#5170EB

#5170EB is a mid, vivid blue. Relative luminance 0.193; OKLCH L 58.9% C 0.188 H 269.2°. Best body text is #000000 at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#5170EB
RGB	rgb(81, 112, 235)
HSL	hsl(228, 79%, 62%)
HSV	hsv(228, 66%, 92%)
CMYK	cmyk(65.5%, 52.3%, 0%, 7.8%)
CIE-LAB	lab(51.08, 27.69, -65.60)
CIE-LCH	lch(51.08, 71.21, 292.88°)
OKLab	oklab(58.86% -0.0026 -0.1884)
OKLCH	oklch(58.86% 0.188 269.2)
XYZ	xyz(24.1778, 19.3336, 81.0387)
Luminance	0.1934 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5170EB #EBCC51

analogous

#51BDEB #5170EB #7F51EB

triadic

#5170EB #EB5170 #70EB51

tetradic

#5170EB #EB51BD #EBCC51 #51EB7F

square

#5170EB #EB51BD #EBCC51 #51EB7F

split-complementary

#5170EB #EB7F51 #BDEB51

monochromatic

#1433AE #1A43E5 #5170EB #889DF1 #BFCAF8

Accessibility & contrast

On white

4.31

#5170EB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.87

#5170EB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5170EB

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5170EB	#FFFFFF	#000000	##000000
##5170EB	1.00	4.31	4.87	4.87
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.87	21.00	1.00	1.00
##000000	4.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E81EF

Deuteranopia (green-blind)

#0073E9

Tritanopia (blue-blind)

#008DA3

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #5170eb;
/* rgb */ color: rgb(81, 112, 235);
/* oklch */ color: oklch(58.9% 0.188 269.2);

Tailwind

colors: {
  custom: {
    50: '#9198f2',
    500: '#5170eb',
    950: '#000000',
  },
}

SCSS

$custom: #5170eb;
$custom-light: #9198f2;
$custom-dark: #000000;

JSON

{
  "hex": "#5170eb",
  "rgb": {
    "r": 81,
    "g": 112,
    "b": 235
  },
  "hsl": {
    "h": 227.922,
    "s": 79.381,
    "l": 61.961
  },
  "oklch": {
    "l": 0.58857,
    "c": 0.18846,
    "h": 269.2
  },
  "luminance": 0.19336
}

Semantic roles & 50–950 ramp

primary

#5170EB

secondary

#E8DDB0

accent

#B10ADC

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0D17

muted

#7E7E85

Preview Lab

Preview with #5170EB

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

Preview Lab → · Contrast checker → · Palette generator →