#517CA5#517CA5

#517CA5 is a mid, moderate cyan. Relative luminance 0.189; OKLCH L 57.2% C 0.080 H 248.2°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#517CA5
RGB	rgb(81, 124, 165)
HSL	hsl(209, 34%, 48%)
HSV	hsv(209, 51%, 65%)
CMYK	cmyk(50.9%, 24.8%, 0%, 35.3%)
CIE-LAB	lab(50.55, -2.99, -26.47)
CIE-LCH	lch(50.55, 26.64, 263.56°)
OKLab	oklab(57.21% -0.0295 -0.0739)
OKLCH	oklch(57.21% 0.08 248.2)
XYZ	xyz(17.3902, 18.8799, 38.3178)
Luminance	0.1888 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517CA5 #A57A51

analogous

#51A5A4 #517CA5 #5152A5

triadic

#517CA5 #A5517C #7CA551

tetradic

#517CA5 #A451A5 #A57A51 #52A551

square

#517CA5 #A451A5 #A57A51 #52A551

split-complementary

#517CA5 #A55152 #A5A451

monochromatic

#293E53 #3D5D7C #517CA5 #779ABC #A0B9D0

Accessibility & contrast

On white

4.40

#517CA5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#517CA5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517CA5

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517CA5	#FFFFFF	#000000	##000000
##517CA5	1.00	4.40	4.78	4.78
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7DA7

Deuteranopia (green-blind)

#6075A4

Tritanopia (blue-blind)

#27868A

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #517ca5;
/* rgb */ color: rgb(81, 124, 165);
/* oklch */ color: oklch(57.2% 0.080 248.2);

Tailwind

colors: {
  custom: {
    50: '#87a1c0',
    500: '#517ca5',
    950: '#000000',
  },
}

SCSS

$custom: #517ca5;
$custom-light: #87a1c0;
$custom-dark: #000000;

JSON

{
  "hex": "#517ca5",
  "rgb": {
    "r": 81,
    "g": 124,
    "b": 165
  },
  "hsl": {
    "h": 209.286,
    "s": 34.146,
    "l": 48.235
  },
  "oklch": {
    "l": 0.5721,
    "c": 0.07962,
    "h": 248.2
  },
  "luminance": 0.18881
}

Semantic roles & 50–950 ramp

primary

#517CA5

secondary

#BDA894

accent

#935ECA

background

#F8F9FB

surface

#F0F2F7

border

#CBCCD0

text

#0C0F12

muted

#7D7E81

Preview Lab

Preview with #517CA5

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

Preview Lab → · Contrast checker → · Palette generator →