#517EB3#517EB3

#517EB3 is a mid, moderate cyan. Relative luminance 0.199; OKLCH L 58.4% C 0.096 H 253.4°. Best body text is #000000 at 4.99:1 contrast (WCAG AA passes).

Color values

HEX	#517EB3
RGB	rgb(81, 126, 179)
HSL	hsl(212, 39%, 51%)
HSV	hsv(212, 55%, 70%)
CMYK	cmyk(54.7%, 29.6%, 0%, 29.8%)
CIE-LAB	lab(51.75, 0.26, -32.69)
CIE-LCH	lch(51.75, 32.70, 270.46°)
OKLab	oklab(58.36% -0.0275 -0.0919)
OKLCH	oklch(58.36% 0.096 253.4)
XYZ	xyz(18.9880, 19.9242, 45.4842)
Luminance	0.1993 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517EB3 #B38651

analogous

#51AFB3 #517EB3 #5551B3

triadic

#517EB3 #B3517E #7EB351

tetradic

#517EB3 #B351AF #B38651 #51B355

square

#517EB3 #B351AF #B38651 #51B355

split-complementary

#517EB3 #B35551 #AFB351

monochromatic

#2A4360 #3C608A #517EB3 #7C9EC6 #A6BDD8

Accessibility & contrast

On white

4.21

#517EB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.99

#517EB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517EB3

4.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517EB3	#FFFFFF	#000000	##000000
##517EB3	1.00	4.21	4.99	4.99
#FFFFFF	4.21	1.00	21.00	21.00
#000000	4.99	21.00	1.00	1.00
##000000	4.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6881B5

Deuteranopia (green-blind)

#5C77B2

Tritanopia (blue-blind)

#138A91

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #517eb3;
/* rgb */ color: rgb(81, 126, 179);
/* oklch */ color: oklch(58.4% 0.096 253.4);

Tailwind

colors: {
  custom: {
    50: '#89a3ca',
    500: '#517eb3',
    950: '#000000',
  },
}

SCSS

$custom: #517eb3;
$custom-light: #89a3ca;
$custom-dark: #000000;

JSON

{
  "hex": "#517eb3",
  "rgb": {
    "r": 81,
    "g": 126,
    "b": 179
  },
  "hsl": {
    "h": 212.449,
    "s": 39.2,
    "l": 50.98
  },
  "oklch": {
    "l": 0.58361,
    "c": 0.09592,
    "h": 253.4
  },
  "luminance": 0.19926
}

Semantic roles & 50–950 ramp

primary

#517EB3

secondary

#C6B29A

accent

#9959CF

background

#F8FAFC

surface

#F0F3F8

border

#CBCDD1

text

#0C0F13

muted

#7D7F82

Preview Lab

Preview with #517EB3

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

Preview Lab → · Contrast checker → · Palette generator →