#5170E0#5170E0

#5170E0 is a mid, vivid blue. Relative luminance 0.187; OKLCH L 58.1% C 0.174 H 268.8°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#5170E0
RGB	rgb(81, 112, 224)
HSL	hsl(227, 70%, 60%)
HSV	hsv(227, 64%, 88%)
CMYK	cmyk(63.8%, 50%, 0%, 12.2%)
CIE-LAB	lab(50.35, 23.92, -60.58)
CIE-LCH	lch(50.35, 65.13, 291.55°)
OKLab	oklab(58.08% -0.0036 -0.1737)
OKLCH	oklch(58.08% 0.174 268.8)
XYZ	xyz(22.6375, 18.7175, 72.9264)
Luminance	0.1872 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5170E0 #E0C151

analogous

#51B8E0 #5170E0 #7A51E0

triadic

#5170E0 #E05170 #70E051

tetradic

#5170E0 #E051B8 #E0C151 #51E07A

square

#5170E0 #E051B8 #E0C151 #51E07A

split-complementary

#5170E0 #E07A51 #B8E051

monochromatic

#1C379B #254ACF #5170E0 #859BE9 #B9C5F3

Accessibility & contrast

On white

4.43

#5170E0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#5170E0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5170E0

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5170E0	#FFFFFF	#000000	##000000
##5170E0	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#317FE4

Deuteranopia (green-blind)

#0072DE

Tritanopia (blue-blind)

#008A9D

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #5170e0;
/* rgb */ color: rgb(81, 112, 224);
/* oklch */ color: oklch(58.1% 0.174 268.8);

Tailwind

colors: {
  custom: {
    50: '#9098ea',
    500: '#5170e0',
    950: '#000000',
  },
}

SCSS

$custom: #5170e0;
$custom-light: #9098ea;
$custom-dark: #000000;

JSON

{
  "hex": "#5170e0",
  "rgb": {
    "r": 81,
    "g": 112,
    "b": 224
  },
  "hsl": {
    "h": 226.993,
    "s": 69.756,
    "l": 59.804
  },
  "oklch": {
    "l": 0.58083,
    "c": 0.1737,
    "h": 268.8
  },
  "luminance": 0.18719
}

Semantic roles & 50–950 ramp

primary

#5170E0

secondary

#E2D6AB

accent

#C63BED

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #5170E0

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

Preview Lab → · Contrast checker → · Palette generator →