#517FA4#517FA4

#517FA4 is a mid, moderate cyan. Relative luminance 0.196; OKLCH L 57.9% C 0.076 H 243.9°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#517FA4
RGB	rgb(81, 127, 164)
HSL	hsl(207, 34%, 48%)
HSV	hsv(207, 51%, 64%)
CMYK	cmyk(50.6%, 22.6%, 0%, 35.7%)
CIE-LAB	lab(51.39, -5.05, -24.58)
CIE-LCH	lch(51.39, 25.09, 258.40°)
OKLab	oklab(57.86% -0.0336 -0.0685)
OKLCH	oklch(57.86% 0.076 243.9)
XYZ	xyz(17.6812, 19.6071, 37.9676)
Luminance	0.1961 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517FA4 #A47651

analogous

#51A49F #517FA4 #5155A4

triadic

#517FA4 #A4517F #7FA451

tetradic

#517FA4 #9F51A4 #A47651 #55A451

square

#517FA4 #9F51A4 #A47651 #55A451

split-complementary

#517FA4 #A45155 #A49F51

monochromatic

#294052 #3D5F7B #517FA4 #779DBC #A0BAD0

Accessibility & contrast

On white

4.27

#517FA4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.92

#517FA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517FA4

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517FA4	#FFFFFF	#000000	##000000
##517FA4	1.00	4.27	4.92	4.92
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.92	21.00	1.00	1.00
##000000	4.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F7FA6

Deuteranopia (green-blind)

#6477A3

Tritanopia (blue-blind)

#27888B

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #517fa4;
/* rgb */ color: rgb(81, 127, 164);
/* oklch */ color: oklch(57.9% 0.076 243.9);

Tailwind

colors: {
  custom: {
    50: '#87a4bf',
    500: '#517fa4',
    950: '#000000',
  },
}

SCSS

$custom: #517fa4;
$custom-light: #87a4bf;
$custom-dark: #000000;

JSON

{
  "hex": "#517fa4",
  "rgb": {
    "r": 81,
    "g": 127,
    "b": 164
  },
  "hsl": {
    "h": 206.747,
    "s": 33.878,
    "l": 48.039
  },
  "oklch": {
    "l": 0.57861,
    "c": 0.07632,
    "h": 243.9
  },
  "luminance": 0.19608
}

Semantic roles & 50–950 ramp

primary

#517FA4

secondary

#BDA694

accent

#8E5ECA

background

#F8FAFB

surface

#F0F3F7

border

#CBCDD0

text

#0C0F12

muted

#7D7F81

Preview Lab

Preview with #517FA4

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

Preview Lab → · Contrast checker → · Palette generator →