#517FC0#517FC0

#517FC0 is a mid, moderate blue. Relative luminance 0.207; OKLCH L 59.3% C 0.112 H 257.2°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#517FC0
RGB	rgb(81, 127, 192)
HSL	hsl(215, 47%, 54%)
HSV	hsv(215, 58%, 75%)
CMYK	cmyk(57.8%, 33.9%, 0%, 24.7%)
CIE-LAB	lab(52.66, 3.90, -38.74)
CIE-LCH	lch(52.66, 38.93, 275.74°)
OKLab	oklab(59.27% -0.0249 -0.1094)
OKLCH	oklch(59.27% 0.112 257.2)
XYZ	xyz(20.4938, 20.7321, 52.7807)
Luminance	0.2073 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517FC0 #C09251

analogous

#51B6C0 #517FC0 #5A51C0

triadic

#517FC0 #C0517F #7FC051

tetradic

#517FC0 #C051B6 #C09251 #51C05A

square

#517FC0 #C051B6 #C09251 #51C05A

split-complementary

#517FC0 #C05A51 #B6C051

monochromatic

#28456F #38619B #517FC0 #7EA0D0 #ABC1E1

Accessibility & contrast

On white

4.08

#517FC0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.15

#517FC0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517FC0

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517FC0	#FFFFFF	#000000	##000000
##517FC0	1.00	4.08	5.15	5.15
#FFFFFF	4.08	1.00	21.00	21.00
#000000	5.15	21.00	1.00	1.00
##000000	5.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6483C3

Deuteranopia (green-blind)

#5679BF

Tritanopia (blue-blind)

#008E97

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #517fc0;
/* rgb */ color: rgb(81, 127, 192);
/* oklch */ color: oklch(59.3% 0.112 257.2);

Tailwind

colors: {
  custom: {
    50: '#8aa3d3',
    500: '#517fc0',
    950: '#000000',
  },
}

SCSS

$custom: #517fc0;
$custom-light: #8aa3d3;
$custom-dark: #000000;

JSON

{
  "hex": "#517fc0",
  "rgb": {
    "r": 81,
    "g": 127,
    "b": 192
  },
  "hsl": {
    "h": 215.135,
    "s": 46.835,
    "l": 53.529
  },
  "oklch": {
    "l": 0.5927,
    "c": 0.11224,
    "h": 257.2
  },
  "luminance": 0.20734
}

Semantic roles & 50–950 ramp

primary

#517FC0

secondary

#CEBA9F

accent

#9F51D6

background

#F8FAFD

surface

#F0F3FA

border

#CBCDD3

text

#0C0F14

muted

#7D7F83

Preview Lab

Preview with #517FC0

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

Preview Lab → · Contrast checker → · Palette generator →