#517CA4#517CA4

#517CA4 is a mid, moderate cyan. Relative luminance 0.188; OKLCH L 57.2% C 0.078 H 247.6°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#517CA4
RGB	rgb(81, 124, 164)
HSL	hsl(209, 34%, 48%)
HSV	hsv(209, 51%, 64%)
CMYK	cmyk(50.6%, 24.4%, 0%, 35.7%)
CIE-LAB	lab(50.50, -3.30, -25.95)
CIE-LCH	lch(50.50, 26.16, 262.76°)
OKLab	oklab(57.16% -0.0299 -0.0725)
OKLCH	oklch(57.16% 0.078 247.6)
XYZ	xyz(17.2995, 18.8437, 37.8403)
Luminance	0.1885 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517CA4 #A47951

analogous

#51A4A3 #517CA4 #5152A4

triadic

#517CA4 #A4517C #7CA451

tetradic

#517CA4 #A351A4 #A47951 #52A451

square

#517CA4 #A351A4 #A47951 #52A451

split-complementary

#517CA4 #A45152 #A4A351

monochromatic

#293E52 #3D5D7B #517CA4 #779ABC #A0B9D0

Accessibility & contrast

On white

4.40

#517CA4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#517CA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517CA4

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517CA4	#FFFFFF	#000000	##000000
##517CA4	1.00	4.40	4.77	4.77
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.77	21.00	1.00	1.00
##000000	4.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7DA6

Deuteranopia (green-blind)

#6174A3

Tritanopia (blue-blind)

#28858A

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #517ca4;
/* rgb */ color: rgb(81, 124, 164);
/* oklch */ color: oklch(57.2% 0.078 247.6);

Tailwind

colors: {
  custom: {
    50: '#87a1bf',
    500: '#517ca4',
    950: '#000000',
  },
}

SCSS

$custom: #517ca4;
$custom-light: #87a1bf;
$custom-dark: #000000;

JSON

{
  "hex": "#517ca4",
  "rgb": {
    "r": 81,
    "g": 124,
    "b": 164
  },
  "hsl": {
    "h": 208.916,
    "s": 33.878,
    "l": 48.039
  },
  "oklch": {
    "l": 0.57162,
    "c": 0.07838,
    "h": 247.6
  },
  "luminance": 0.18845
}

Semantic roles & 50–950 ramp

primary

#517CA4

secondary

#BDA894

accent

#925ECA

background

#F8F9FB

surface

#F0F2F7

border

#CBCCD0

text

#0C0F12

muted

#7D7E81

Preview Lab

Preview with #517CA4

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

Preview Lab → · Contrast checker → · Palette generator →