#517EB0#517EB0

#517EB0 is a mid, moderate cyan. Relative luminance 0.198; OKLCH L 58.2% C 0.092 H 252.0°. Best body text is #000000 at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#517EB0
RGB	rgb(81, 126, 176)
HSL	hsl(212, 38%, 50%)
HSV	hsv(212, 54%, 69%)
CMYK	cmyk(54%, 28.4%, 0%, 31%)
CIE-LAB	lab(51.62, -0.70, -31.18)
CIE-LCH	lch(51.62, 31.19, 268.71°)
OKLab	oklab(58.21% -0.0284 -0.0875)
OKLCH	oklch(58.21% 0.092 252)
XYZ	xyz(18.6879, 19.8041, 43.9037)
Luminance	0.1981 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517EB0 #B08351

analogous

#51ADB0 #517EB0 #5451B0

triadic

#517EB0 #B0517E #7EB051

tetradic

#517EB0 #B051AD #B08351 #51B054

square

#517EB0 #B051AD #B08351 #51B054

split-complementary

#517EB0 #B05451 #ADB051

monochromatic

#2A425D #3D6087 #517EB0 #7B9DC3 #A5BCD6

Accessibility & contrast

On white

4.23

#517EB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.96

#517EB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517EB0

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517EB0	#FFFFFF	#000000	##000000
##517EB0	1.00	4.23	4.96	4.96
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.96	21.00	1.00	1.00
##000000	4.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A80B2

Deuteranopia (green-blind)

#5E77AF

Tritanopia (blue-blind)

#19898F

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #517eb0;
/* rgb */ color: rgb(81, 126, 176);
/* oklch */ color: oklch(58.2% 0.092 252.0);

Tailwind

colors: {
  custom: {
    50: '#88a3c8',
    500: '#517eb0',
    950: '#000000',
  },
}

SCSS

$custom: #517eb0;
$custom-light: #88a3c8;
$custom-dark: #000000;

JSON

{
  "hex": "#517eb0",
  "rgb": {
    "r": 81,
    "g": 126,
    "b": 176
  },
  "hsl": {
    "h": 211.579,
    "s": 37.549,
    "l": 50.392
  },
  "oklch": {
    "l": 0.58209,
    "c": 0.092,
    "h": 252
  },
  "luminance": 0.19806
}

Semantic roles & 50–950 ramp

primary

#517EB0

secondary

#C4B099

accent

#975ACE

background

#F8FAFC

surface

#F0F3F8

border

#CBCDD1

text

#0C0F13

muted

#7D7F82

Preview Lab

Preview with #517EB0

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

Preview Lab → · Contrast checker → · Palette generator →