#517AB2#517AB2

#517AB2 is a mid, moderate cyan. Relative luminance 0.189; OKLCH L 57.4% C 0.098 H 256.5°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#517AB2
RGB	rgb(81, 122, 178)
HSL	hsl(215, 39%, 51%)
HSV	hsv(215, 54%, 70%)
CMYK	cmyk(54.5%, 31.5%, 0%, 30.2%)
CIE-LAB	lab(50.55, 2.32, -34.00)
CIE-LCH	lch(50.55, 34.08, 273.91°)
OKLab	oklab(57.4% -0.0231 -0.0957)
OKLCH	oklch(57.4% 0.098 256.5)
XYZ	xyz(18.3860, 18.8813, 44.7864)
Luminance	0.1888 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517AB2 #B28951

analogous

#51AAB2 #517AB2 #5851B2

triadic

#517AB2 #B2517A #7AB251

tetradic

#517AB2 #B251AA #B28951 #51B258

square

#517AB2 #B251AA #B28951 #51B258

split-complementary

#517AB2 #B25851 #AAB251

monochromatic

#2A405F #3D5D89 #517AB2 #7B9AC5 #A6BBD8

Accessibility & contrast

On white

4.40

#517AB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#517AB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517AB2

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517AB2	#FFFFFF	#000000	##000000
##517AB2	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)

#647DB4

Deuteranopia (green-blind)

#5774B1

Tritanopia (blue-blind)

#17878E

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #517ab2;
/* rgb */ color: rgb(81, 122, 178);
/* oklch */ color: oklch(57.4% 0.098 256.5);

Tailwind

colors: {
  custom: {
    50: '#88a0c9',
    500: '#517ab2',
    950: '#000000',
  },
}

SCSS

$custom: #517ab2;
$custom-light: #88a0c9;
$custom-dark: #000000;

JSON

{
  "hex": "#517ab2",
  "rgb": {
    "r": 81,
    "g": 122,
    "b": 178
  },
  "hsl": {
    "h": 214.639,
    "s": 38.645,
    "l": 50.784
  },
  "oklch": {
    "l": 0.57403,
    "c": 0.09845,
    "h": 256.5
  },
  "luminance": 0.18883
}

Semantic roles & 50–950 ramp

primary

#517AB2

secondary

#C5B39A

accent

#9D59CF

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0E13

muted

#7D7E82

Preview Lab

Preview with #517AB2

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

Preview Lab → · Contrast checker → · Palette generator →