#517EC0#517EC0

#517EC0 is a mid, moderate blue. Relative luminance 0.205; OKLCH L 59.0% C 0.113 H 257.9°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#517EC0
RGB	rgb(81, 126, 192)
HSL	hsl(216, 47%, 54%)
HSV	hsv(216, 58%, 75%)
CMYK	cmyk(57.8%, 34.4%, 0%, 24.7%)
CIE-LAB	lab(52.37, 4.50, -39.19)
CIE-LCH	lch(52.37, 39.44, 276.54°)
OKLab	oklab(59.05% -0.0238 -0.1108)
OKLCH	oklch(59.05% 0.113 257.9)
XYZ	xyz(20.3653, 20.4751, 52.7378)
Luminance	0.2048 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517EC0 #C09351

analogous

#51B5C0 #517EC0 #5B51C0

triadic

#517EC0 #C0517E #7EC051

tetradic

#517EC0 #C051B5 #C09351 #51C05B

square

#517EC0 #C051B5 #C09351 #51C05B

split-complementary

#517EC0 #C05B51 #B5C051

monochromatic

#28456F #38619B #517EC0 #7E9FD0 #ABC1E1

Accessibility & contrast

On white

4.12

#517EC0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#517EC0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517EC0

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517EC0	#FFFFFF	#000000	##000000
##517EC0	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)

#6383C3

Deuteranopia (green-blind)

#5478BF

Tritanopia (blue-blind)

#008D96

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #517ec0;
/* rgb */ color: rgb(81, 126, 192);
/* oklch */ color: oklch(59.0% 0.113 257.9);

Tailwind

colors: {
  custom: {
    50: '#8aa3d3',
    500: '#517ec0',
    950: '#000000',
  },
}

SCSS

$custom: #517ec0;
$custom-light: #8aa3d3;
$custom-dark: #000000;

JSON

{
  "hex": "#517ec0",
  "rgb": {
    "r": 81,
    "g": 126,
    "b": 192
  },
  "hsl": {
    "h": 215.676,
    "s": 46.835,
    "l": 53.529
  },
  "oklch": {
    "l": 0.59047,
    "c": 0.11329,
    "h": 257.9
  },
  "luminance": 0.20477
}

Semantic roles & 50–950 ramp

primary

#517EC0

secondary

#CEBB9F

accent

#A051D6

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0F14

muted

#7D7E83

Preview Lab

Preview with #517EC0

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

Preview Lab → · Contrast checker → · Palette generator →