#5171EC#5171EC

#5171EC is a mid, vivid blue. Relative luminance 0.196; OKLCH L 59.1% C 0.189 H 269.0°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#5171EC
RGB	rgb(81, 113, 236)
HSL	hsl(228, 80%, 62%)
HSV	hsv(228, 66%, 93%)
CMYK	cmyk(65.7%, 52.1%, 0%, 7.5%)
CIE-LAB	lab(51.40, 27.42, -65.64)
CIE-LCH	lch(51.40, 71.14, 292.67°)
OKLab	oklab(59.12% -0.0034 -0.1885)
OKLCH	oklch(59.12% 0.189 269)
XYZ	xyz(24.4336, 19.6134, 81.8387)
Luminance	0.1962 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5171EC #ECCC51

analogous

#51BFEC #5171EC #7F51EC

triadic

#5171EC #EC5171 #71EC51

tetradic

#5171EC #EC51BF #ECCC51 #51EC7F

square

#5171EC #EC51BF #ECCC51 #51EC7F

split-complementary

#5171EC #EC7F51 #BFEC51

monochromatic

#1333AF #1A44E6 #5171EC #889EF2 #BFCBF8

Accessibility & contrast

On white

4.27

#5171EC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.92

#5171EC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5171EC

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5171EC	#FFFFFF	#000000	##000000
##5171EC	1.00	4.27	4.92	4.92
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.92	21.00	1.00	1.00
##000000	4.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2082F0

Deuteranopia (green-blind)

#0074EA

Tritanopia (blue-blind)

#008EA4

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #5171ec;
/* rgb */ color: rgb(81, 113, 236);
/* oklch */ color: oklch(59.1% 0.189 269.0);

Tailwind

colors: {
  custom: {
    50: '#9299f3',
    500: '#5171ec',
    950: '#000000',
  },
}

SCSS

$custom: #5171ec;
$custom-light: #9299f3;
$custom-dark: #000000;

JSON

{
  "hex": "#5171ec",
  "rgb": {
    "r": 81,
    "g": 113,
    "b": 236
  },
  "hsl": {
    "h": 227.613,
    "s": 80.311,
    "l": 62.157
  },
  "oklch": {
    "l": 0.59122,
    "c": 0.18857,
    "h": 269
  },
  "luminance": 0.19616
}

Semantic roles & 50–950 ramp

primary

#5171EC

secondary

#E9DDB0

accent

#B109DD

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0D17

muted

#7E7E85

Preview Lab

Preview with #5171EC

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

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