#517DC4#517DC4

#517DC4 is a mid, moderate blue. Relative luminance 0.204; OKLCH L 59.0% C 0.120 H 259.6°. Best body text is #000000 at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#517DC4
RGB	rgb(81, 125, 196)
HSL	hsl(217, 49%, 54%)
HSV	hsv(217, 59%, 77%)
CMYK	cmyk(58.7%, 36.2%, 0%, 23.1%)
CIE-LAB	lab(52.29, 6.42, -41.60)
CIE-LCH	lch(52.29, 42.10, 278.78°)
OKLab	oklab(59.05% -0.0217 -0.1178)
OKLCH	oklch(59.05% 0.12 259.6)
XYZ	xyz(20.6873, 20.4003, 55.0613)
Luminance	0.2040 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517DC4 #C49851

analogous

#51B7C4 #517DC4 #5F51C4

triadic

#517DC4 #C4517D #7DC451

tetradic

#517DC4 #C451B7 #C49851 #51C45F

square

#517DC4 #C451B7 #C49851 #51C45F

split-complementary

#517DC4 #C45F51 #B7C451

monochromatic

#274473 #375FA1 #517DC4 #7F9FD3 #ACC1E3

Accessibility & contrast

On white

4.13

#517DC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.08

#517DC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517DC4

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517DC4	#FFFFFF	#000000	##000000
##517DC4	1.00	4.13	5.08	5.08
#FFFFFF	4.13	1.00	21.00	21.00
#000000	5.08	21.00	1.00	1.00
##000000	5.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F83C7

Deuteranopia (green-blind)

#5078C3

Tritanopia (blue-blind)

#008D97

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #517dc4;
/* rgb */ color: rgb(81, 125, 196);
/* oklch */ color: oklch(59.0% 0.120 259.6);

Tailwind

colors: {
  custom: {
    50: '#8ba2d6',
    500: '#517dc4',
    950: '#000000',
  },
}

SCSS

$custom: #517dc4;
$custom-light: #8ba2d6;
$custom-dark: #000000;

JSON

{
  "hex": "#517dc4",
  "rgb": {
    "r": 81,
    "g": 125,
    "b": 196
  },
  "hsl": {
    "h": 217.043,
    "s": 49.356,
    "l": 54.314
  },
  "oklch": {
    "l": 0.59048,
    "c": 0.1198,
    "h": 259.6
  },
  "luminance": 0.20402
}

Semantic roles & 50–950 ramp

primary

#517DC4

secondary

#D1BEA0

accent

#A44FD9

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0D0F14

muted

#7D7E83

Preview Lab

Preview with #517DC4

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

Preview Lab → · Contrast checker → · Palette generator →