#517FBB#517FBB

#517FBB is a mid, moderate cyan. Relative luminance 0.205; OKLCH L 59.0% C 0.106 H 255.6°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#517FBB
RGB	rgb(81, 127, 187)
HSL	hsl(214, 44%, 53%)
HSV	hsv(214, 57%, 73%)
CMYK	cmyk(56.7%, 32.1%, 0%, 26.7%)
CIE-LAB	lab(52.41, 2.26, -36.26)
CIE-LCH	lch(52.41, 36.33, 273.56°)
OKLab	oklab(59% -0.0263 -0.1022)
OKLCH	oklch(59% 0.106 255.6)
XYZ	xyz(19.9492, 20.5143, 49.9125)
Luminance	0.2052 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517FBB #BB8D51

analogous

#51B4BB #517FBB #5851BB

triadic

#517FBB #BB517F #7FBB51

tetradic

#517FBB #BB51B4 #BB8D51 #51BB58

square

#517FBB #BB51B4 #BB8D51 #51BB58

split-complementary

#517FBB #BB5851 #B4BB51

monochromatic

#294569 #3A6195 #517FBB #7D9FCC #A9C0DD

Accessibility & contrast

On white

4.12

#517FBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#517FBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517FBB

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517FBB	#FFFFFF	#000000	##000000
##517FBB	1.00	4.12	5.10	5.10
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.10	21.00	1.00	1.00
##000000	5.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6683BE

Deuteranopia (green-blind)

#5978BA

Tritanopia (blue-blind)

#008D94

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #517fbb;
/* rgb */ color: rgb(81, 127, 187);
/* oklch */ color: oklch(59.0% 0.106 255.6);

Tailwind

colors: {
  custom: {
    50: '#8aa3cf',
    500: '#517fbb',
    950: '#000000',
  },
}

SCSS

$custom: #517fbb;
$custom-light: #8aa3cf;
$custom-dark: #000000;

JSON

{
  "hex": "#517fbb",
  "rgb": {
    "r": 81,
    "g": 127,
    "b": 187
  },
  "hsl": {
    "h": 213.962,
    "s": 43.802,
    "l": 52.549
  },
  "oklch": {
    "l": 0.59002,
    "c": 0.10555,
    "h": 255.6
  },
  "luminance": 0.20516
}

Semantic roles & 50–950 ramp

primary

#517FBB

secondary

#CBB79D

accent

#9C54D4

background

#F8FAFC

surface

#F0F3F9

border

#CBCDD2

text

#0C0F14

muted

#7D7F82

Preview Lab

Preview with #517FBB

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

Preview Lab → · Contrast checker → · Palette generator →