#517EA4#517EA4

#517EA4 is a mid, moderate cyan. Relative luminance 0.194; OKLCH L 57.6% C 0.077 H 245.2°. Best body text is #000000 at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#517EA4
RGB	rgb(81, 126, 164)
HSL	hsl(207, 34%, 48%)
HSV	hsv(207, 51%, 64%)
CMYK	cmyk(50.6%, 23.2%, 0%, 35.7%)
CIE-LAB	lab(51.09, -4.47, -25.04)
CIE-LCH	lch(51.09, 25.43, 259.89°)
OKLab	oklab(57.63% -0.0323 -0.0698)
OKLCH	oklch(57.63% 0.077 245.2)
XYZ	xyz(17.5527, 19.3500, 37.9247)
Luminance	0.1935 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517EA4 #A47751

analogous

#51A4A0 #517EA4 #5154A4

triadic

#517EA4 #A4517E #7EA451

tetradic

#517EA4 #A051A4 #A47751 #54A451

square

#517EA4 #A051A4 #A47751 #54A451

split-complementary

#517EA4 #A45154 #A4A051

monochromatic

#293F52 #3D5F7B #517EA4 #779CBC #A0BAD0

Accessibility & contrast

On white

4.31

#517EA4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.87

#517EA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517EA4

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517EA4	#FFFFFF	#000000	##000000
##517EA4	1.00	4.31	4.87	4.87
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.87	21.00	1.00	1.00
##000000	4.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E7EA6

Deuteranopia (green-blind)

#6376A3

Tritanopia (blue-blind)

#28878B

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #517ea4;
/* rgb */ color: rgb(81, 126, 164);
/* oklch */ color: oklch(57.6% 0.077 245.2);

Tailwind

colors: {
  custom: {
    50: '#87a3bf',
    500: '#517ea4',
    950: '#000000',
  },
}

SCSS

$custom: #517ea4;
$custom-light: #87a3bf;
$custom-dark: #000000;

JSON

{
  "hex": "#517ea4",
  "rgb": {
    "r": 81,
    "g": 126,
    "b": 164
  },
  "hsl": {
    "h": 207.47,
    "s": 33.878,
    "l": 48.039
  },
  "oklch": {
    "l": 0.57627,
    "c": 0.07697,
    "h": 245.2
  },
  "luminance": 0.19351
}

Semantic roles & 50–950 ramp

primary

#517EA4

secondary

#BDA794

accent

#8F5ECA

background

#F8FAFB

surface

#F0F3F7

border

#CBCDD0

text

#0C0F12

muted

#7D7F81

Preview Lab

Preview with #517EA4

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

Preview Lab → · Contrast checker → · Palette generator →