#517FC2#517FC2

#517FC2 is a mid, moderate blue. Relative luminance 0.208; OKLCH L 59.4% C 0.115 H 257.7°. Best body text is #000000 at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#517FC2
RGB	rgb(81, 127, 194)
HSL	hsl(216, 48%, 54%)
HSV	hsv(216, 58%, 76%)
CMYK	cmyk(58.2%, 34.5%, 0%, 23.9%)
CIE-LAB	lab(52.75, 4.56, -39.73)
CIE-LCH	lch(52.75, 39.99, 276.54°)
OKLab	oklab(59.38% -0.0244 -0.1123)
OKLCH	oklch(59.38% 0.115 257.7)
XYZ	xyz(20.7169, 20.8214, 53.9557)
Luminance	0.2082 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517FC2 #C29451

analogous

#51B8C2 #517FC2 #5C51C2

triadic

#517FC2 #C2517F #7FC251

tetradic

#517FC2 #C251B8 #C29451 #51C25C

square

#517FC2 #C251B8 #C29451 #51C25C

split-complementary

#517FC2 #C25C51 #B8C251

monochromatic

#284571 #37619E #517FC2 #7EA0D2 #ACC2E2

Accessibility & contrast

On white

4.07

#517FC2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.16

#517FC2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517FC2

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517FC2	#FFFFFF	#000000	##000000
##517FC2	1.00	4.07	5.16	5.16
#FFFFFF	4.07	1.00	21.00	21.00
#000000	5.16	21.00	1.00	1.00
##000000	5.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6384C5

Deuteranopia (green-blind)

#5579C1

Tritanopia (blue-blind)

#008E97

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #517fc2;
/* rgb */ color: rgb(81, 127, 194);
/* oklch */ color: oklch(59.4% 0.115 257.7);

Tailwind

colors: {
  custom: {
    50: '#8aa3d5',
    500: '#517fc2',
    950: '#000000',
  },
}

SCSS

$custom: #517fc2;
$custom-light: #8aa3d5;
$custom-dark: #000000;

JSON

{
  "hex": "#517fc2",
  "rgb": {
    "r": 81,
    "g": 127,
    "b": 194
  },
  "hsl": {
    "h": 215.575,
    "s": 48.085,
    "l": 53.922
  },
  "oklch": {
    "l": 0.59379,
    "c": 0.11494,
    "h": 257.7
  },
  "luminance": 0.20823
}

Semantic roles & 50–950 ramp

primary

#517FC2

secondary

#D0BC9F

accent

#A050D8

background

#F8FAFD

surface

#F0F3FA

border

#CBCDD3

text

#0D0F14

muted

#7D7F83

Preview Lab

Preview with #517FC2

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

Preview Lab → · Contrast checker → · Palette generator →