#517DC0#517DC0

#517DC0 is a mid, moderate blue. Relative luminance 0.202; OKLCH L 58.8% C 0.114 H 258.6°. Best body text is #000000 at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#517DC0
RGB	rgb(81, 125, 192)
HSL	hsl(216, 47%, 54%)
HSV	hsv(216, 58%, 75%)
CMYK	cmyk(57.8%, 34.9%, 0%, 24.7%)
CIE-LAB	lab(52.09, 5.10, -39.64)
CIE-LCH	lch(52.09, 39.96, 277.33°)
OKLab	oklab(58.83% -0.0227 -0.1121)
OKLCH	oklch(58.83% 0.114 258.6)
XYZ	xyz(20.2381, 20.2206, 52.6954)
Luminance	0.2022 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517DC0 #C09451

analogous

#51B4C0 #517DC0 #5C51C0

triadic

#517DC0 #C0517D #7DC051

tetradic

#517DC0 #C051B4 #C09451 #51C05C

square

#517DC0 #C051B4 #C09451 #51C05C

split-complementary

#517DC0 #C05C51 #B4C051

monochromatic

#28446F #38609B #517DC0 #7E9FD0 #ABC0E1

Accessibility & contrast

On white

4.16

#517DC0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.04

#517DC0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517DC0

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517DC0	#FFFFFF	#000000	##000000
##517DC0	1.00	4.16	5.04	5.04
#FFFFFF	4.16	1.00	21.00	21.00
#000000	5.04	21.00	1.00	1.00
##000000	5.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6182C3

Deuteranopia (green-blind)

#5377BF

Tritanopia (blue-blind)

#008C95

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #517dc0;
/* rgb */ color: rgb(81, 125, 192);
/* oklch */ color: oklch(58.8% 0.114 258.6);

Tailwind

colors: {
  custom: {
    50: '#8aa2d3',
    500: '#517dc0',
    950: '#000000',
  },
}

SCSS

$custom: #517dc0;
$custom-light: #8aa2d3;
$custom-dark: #000000;

JSON

{
  "hex": "#517dc0",
  "rgb": {
    "r": 81,
    "g": 125,
    "b": 192
  },
  "hsl": {
    "h": 216.216,
    "s": 46.835,
    "l": 53.529
  },
  "oklch": {
    "l": 0.58826,
    "c": 0.11434,
    "h": 258.6
  },
  "luminance": 0.20222
}

Semantic roles & 50–950 ramp

primary

#517DC0

secondary

#CEBB9F

accent

#A251D6

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0F14

muted

#7D7E83

Preview Lab

Preview with #517DC0

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

Preview Lab → · Contrast checker → · Palette generator →