#517EA5#517EA5

#517EA5 is a mid, moderate cyan. Relative luminance 0.194; OKLCH L 57.7% C 0.078 H 245.8°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#517EA5
RGB	rgb(81, 126, 165)
HSL	hsl(208, 34%, 48%)
HSV	hsv(208, 51%, 65%)
CMYK	cmyk(50.9%, 23.6%, 0%, 35.3%)
CIE-LAB	lab(51.14, -4.16, -25.55)
CIE-LCH	lch(51.14, 25.89, 260.76°)
OKLab	oklab(57.67% -0.032 -0.0713)
OKLCH	oklch(57.67% 0.078 245.8)
XYZ	xyz(17.6433, 19.3863, 38.4022)
Luminance	0.1939 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517EA5 #A57851

analogous

#51A5A2 #517EA5 #5154A5

triadic

#517EA5 #A5517E #7EA551

tetradic

#517EA5 #A251A5 #A57851 #54A551

square

#517EA5 #A251A5 #A57851 #54A551

split-complementary

#517EA5 #A55154 #A5A251

monochromatic

#293F53 #3D5F7C #517EA5 #779CBC #A0BAD0

Accessibility & contrast

On white

4.31

#517EA5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.88

#517EA5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517EA5

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517EA5	#FFFFFF	#000000	##000000
##517EA5	1.00	4.31	4.88	4.88
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.88	21.00	1.00	1.00
##000000	4.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E7FA7

Deuteranopia (green-blind)

#6376A4

Tritanopia (blue-blind)

#27878B

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #517ea5;
/* rgb */ color: rgb(81, 126, 165);
/* oklch */ color: oklch(57.7% 0.078 245.8);

Tailwind

colors: {
  custom: {
    50: '#87a3bf',
    500: '#517ea5',
    950: '#000000',
  },
}

SCSS

$custom: #517ea5;
$custom-light: #87a3bf;
$custom-dark: #000000;

JSON

{
  "hex": "#517ea5",
  "rgb": {
    "r": 81,
    "g": 126,
    "b": 165
  },
  "hsl": {
    "h": 207.857,
    "s": 34.146,
    "l": 48.235
  },
  "oklch": {
    "l": 0.57674,
    "c": 0.07816,
    "h": 245.8
  },
  "luminance": 0.19388
}

Semantic roles & 50–950 ramp

primary

#517EA5

secondary

#BDA794

accent

#905ECA

background

#F8FAFB

surface

#F0F3F7

border

#CBCDD0

text

#0C0F12

muted

#7D7F81

Preview Lab

Preview with #517EA5

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

Preview Lab → · Contrast checker → · Palette generator →