#517CB5#517CB5

#517CB5 is a mid, moderate cyan. Relative luminance 0.195; OKLCH L 58.0% C 0.100 H 255.9°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#517CB5
RGB	rgb(81, 124, 181)
HSL	hsl(214, 40%, 51%)
HSV	hsv(214, 55%, 71%)
CMYK	cmyk(55.2%, 31.5%, 0%, 29%)
CIE-LAB	lab(51.27, 2.10, -34.61)
CIE-LCH	lch(51.27, 34.67, 273.47°)
OKLab	oklab(58.01% -0.0245 -0.0974)
OKLCH	oklch(58.01% 0.1 255.9)
XYZ	xyz(18.9386, 19.4993, 46.4728)
Luminance	0.1950 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517CB5 #B58A51

analogous

#51AEB5 #517CB5 #5851B5

triadic

#517CB5 #B5517C #7CB551

tetradic

#517CB5 #B551AE #B58A51 #51B558

square

#517CB5 #B551AE #B58A51 #51B558

split-complementary

#517CB5 #B55851 #AEB551

monochromatic

#2A4262 #3C5F8D #517CB5 #7C9CC7 #A7BDDA

Accessibility & contrast

On white

4.29

#517CB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#517CB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517CB5

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517CB5	#FFFFFF	#000000	##000000
##517CB5	1.00	4.29	4.90	4.90
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.90	21.00	1.00	1.00
##000000	4.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#657FB7

Deuteranopia (green-blind)

#5876B4

Tritanopia (blue-blind)

#108990

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #517cb5;
/* rgb */ color: rgb(81, 124, 181);
/* oklch */ color: oklch(58.0% 0.100 255.9);

Tailwind

colors: {
  custom: {
    50: '#89a1cb',
    500: '#517cb5',
    950: '#000000',
  },
}

SCSS

$custom: #517cb5;
$custom-light: #89a1cb;
$custom-dark: #000000;

JSON

{
  "hex": "#517cb5",
  "rgb": {
    "r": 81,
    "g": 124,
    "b": 181
  },
  "hsl": {
    "h": 214.2,
    "s": 40.323,
    "l": 51.373
  },
  "oklch": {
    "l": 0.58011,
    "c": 0.10049,
    "h": 255.9
  },
  "luminance": 0.19501
}

Semantic roles & 50–950 ramp

primary

#517CB5

secondary

#C7B49B

accent

#9C58D0

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0E13

muted

#7D7E82

Preview Lab

Preview with #517CB5

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

Preview Lab → · Contrast checker → · Palette generator →