#517BB3#517BB3

#517BB3 is a mid, moderate cyan. Relative luminance 0.192; OKLCH L 57.7% C 0.099 H 256.0°. Best body text is #000000 at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#517BB3
RGB	rgb(81, 123, 179)
HSL	hsl(214, 39%, 51%)
HSV	hsv(214, 55%, 70%)
CMYK	cmyk(54.7%, 31.3%, 0%, 29.8%)
CIE-LAB	lab(50.88, 2.05, -34.05)
CIE-LCH	lch(50.88, 34.11, 273.44°)
OKLab	oklab(57.68% -0.0239 -0.0958)
OKLCH	oklch(57.68% 0.099 256)
XYZ	xyz(18.6102, 19.1684, 45.3583)
Luminance	0.1917 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517BB3 #B38951

analogous

#51ACB3 #517BB3 #5851B3

triadic

#517BB3 #B3517B #7BB351

tetradic

#517BB3 #B351AC #B38951 #51B358

square

#517BB3 #B351AC #B38951 #51B358

split-complementary

#517BB3 #B35851 #ACB351

monochromatic

#2A4160 #3C5E8A #517BB3 #7C9BC6 #A6BCD8

Accessibility & contrast

On white

4.34

#517BB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.83

#517BB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517BB3

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517BB3	#FFFFFF	#000000	##000000
##517BB3	1.00	4.34	4.83	4.83
#FFFFFF	4.34	1.00	21.00	21.00
#000000	4.83	21.00	1.00	1.00
##000000	4.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#647EB5

Deuteranopia (green-blind)

#5875B2

Tritanopia (blue-blind)

#15888F

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #517bb3;
/* rgb */ color: rgb(81, 123, 179);
/* oklch */ color: oklch(57.7% 0.099 256.0);

Tailwind

colors: {
  custom: {
    50: '#89a0ca',
    500: '#517bb3',
    950: '#000000',
  },
}

SCSS

$custom: #517bb3;
$custom-light: #89a0ca;
$custom-dark: #000000;

JSON

{
  "hex": "#517bb3",
  "rgb": {
    "r": 81,
    "g": 123,
    "b": 179
  },
  "hsl": {
    "h": 214.286,
    "s": 39.2,
    "l": 50.98
  },
  "oklch": {
    "l": 0.57681,
    "c": 0.0988,
    "h": 256
  },
  "luminance": 0.1917
}

Semantic roles & 50–950 ramp

primary

#517BB3

secondary

#C6B39A

accent

#9C59CF

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0E13

muted

#7D7E82

Preview Lab

Preview with #517BB3

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

Preview Lab → · Contrast checker → · Palette generator →