#5171E6#5171E6

#5171E6 is a mid, vivid blue. Relative luminance 0.193; OKLCH L 58.7% C 0.181 H 268.8°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#5171E6
RGB	rgb(81, 113, 230)
HSL	hsl(227, 75%, 61%)
HSV	hsv(227, 65%, 90%)
CMYK	cmyk(64.8%, 50.9%, 0%, 9.8%)
CIE-LAB	lab(51.00, 25.36, -62.91)
CIE-LCH	lch(51.00, 67.83, 291.95°)
OKLab	oklab(58.7% -0.0039 -0.1805)
OKLCH	oklch(58.7% 0.181 268.8)
XYZ	xyz(23.5765, 19.2706, 77.3247)
Luminance	0.1927 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5171E6 #E6C651

analogous

#51BBE6 #5171E6 #7B51E6

triadic

#5171E6 #E65171 #71E651

tetradic

#5171E6 #E651BB #E6C651 #51E67B

square

#5171E6 #E651BB #E6C651 #51E67B

split-complementary

#5171E6 #E67B51 #BBE651

monochromatic

#1836A5 #1F48DA #5171E6 #879DEE #BCC8F5

Accessibility & contrast

On white

4.33

#5171E6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.85

#5171E6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5171E6

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5171E6	#FFFFFF	#000000	##000000
##5171E6	1.00	4.33	4.85	4.85
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.85	21.00	1.00	1.00
##000000	4.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B81EA

Deuteranopia (green-blind)

#0073E4

Tritanopia (blue-blind)

#008CA1

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #5171e6;
/* rgb */ color: rgb(81, 113, 230);
/* oklch */ color: oklch(58.7% 0.181 268.8);

Tailwind

colors: {
  custom: {
    50: '#9199ef',
    500: '#5171e6',
    950: '#000000',
  },
}

SCSS

$custom: #5171e6;
$custom-light: #9199ef;
$custom-dark: #000000;

JSON

{
  "hex": "#5171e6",
  "rgb": {
    "r": 81,
    "g": 113,
    "b": 230
  },
  "hsl": {
    "h": 227.114,
    "s": 74.874,
    "l": 60.98
  },
  "oklch": {
    "l": 0.58697,
    "c": 0.18056,
    "h": 268.8
  },
  "luminance": 0.19273
}

Semantic roles & 50–950 ramp

primary

#5171E6

secondary

#E5D9AD

accent

#AC0ED7

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #5171E6

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

Preview Lab → · Contrast checker → · Palette generator →