#517DC6#517DC6

#517DC6 is a mid, vivid blue. Relative luminance 0.205; OKLCH L 59.2% C 0.123 H 260.0°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#517DC6
RGB	rgb(81, 125, 198)
HSL	hsl(217, 51%, 55%)
HSV	hsv(217, 59%, 78%)
CMYK	cmyk(59.1%, 36.9%, 0%, 22.4%)
CIE-LAB	lab(52.39, 7.09, -42.58)
CIE-LCH	lch(52.39, 43.17, 279.45°)
OKLab	oklab(59.16% -0.0212 -0.1207)
OKLCH	oklch(59.16% 0.123 260)
XYZ	xyz(20.9164, 20.4920, 56.2682)
Luminance	0.2049 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517DC6 #C69A51

analogous

#51B7C6 #517DC6 #6051C6

triadic

#517DC6 #C6517D #7DC651

tetradic

#517DC6 #C651B7 #C69A51 #51C660

square

#517DC6 #C651B7 #C69A51 #51C660

split-complementary

#517DC6 #C66051 #B7C651

monochromatic

#274476 #365FA4 #517DC6 #7F9FD5 #ADC2E4

Accessibility & contrast

On white

4.12

#517DC6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#517DC6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517DC6

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517DC6	#FFFFFF	#000000	##000000
##517DC6	1.00	4.12	5.10	5.10
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.10	21.00	1.00	1.00
##000000	5.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E83C9

Deuteranopia (green-blind)

#4F78C4

Tritanopia (blue-blind)

#008D98

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #517dc6;
/* rgb */ color: rgb(81, 125, 198);
/* oklch */ color: oklch(59.2% 0.123 260.0);

Tailwind

colors: {
  custom: {
    50: '#8ba2d7',
    500: '#517dc6',
    950: '#000000',
  },
}

SCSS

$custom: #517dc6;
$custom-light: #8ba2d7;
$custom-dark: #000000;

JSON

{
  "hex": "#517dc6",
  "rgb": {
    "r": 81,
    "g": 125,
    "b": 198
  },
  "hsl": {
    "h": 217.436,
    "s": 50.649,
    "l": 54.706
  },
  "oklch": {
    "l": 0.59161,
    "c": 0.12253,
    "h": 260
  },
  "luminance": 0.20494
}

Semantic roles & 50–950 ramp

primary

#517DC6

secondary

#D2C0A1

accent

#A54EDA

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0F14

muted

#7E7E83

Preview Lab

Preview with #517DC6

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

Preview Lab → · Contrast checker → · Palette generator →