#517DB2#517DB2

#517DB2 is a mid, moderate cyan. Relative luminance 0.196; OKLCH L 58.1% C 0.096 H 253.8°. Best body text is #000000 at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#517DB2
RGB	rgb(81, 125, 178)
HSL	hsl(213, 39%, 51%)
HSV	hsv(213, 54%, 70%)
CMYK	cmyk(54.5%, 29.8%, 0%, 30.2%)
CIE-LAB	lab(51.42, 0.53, -32.64)
CIE-LCH	lch(51.42, 32.65, 270.94°)
OKLab	oklab(58.08% -0.0266 -0.0917)
OKLCH	oklch(58.08% 0.096 253.8)
XYZ	xyz(18.7600, 19.6294, 44.9111)
Luminance	0.1963 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517DB2 #B28651

analogous

#51ADB2 #517DB2 #5651B2

triadic

#517DB2 #B2517D #7DB251

tetradic

#517DB2 #B251AD #B28651 #51B256

square

#517DB2 #B251AD #B28651 #51B256

split-complementary

#517DB2 #B25651 #ADB251

monochromatic

#2A425F #3D5F89 #517DB2 #7B9DC5 #A6BCD8

Accessibility & contrast

On white

4.26

#517DB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.93

#517DB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517DB2

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517DB2	#FFFFFF	#000000	##000000
##517DB2	1.00	4.26	4.93	4.93
#FFFFFF	4.26	1.00	21.00	21.00
#000000	4.93	21.00	1.00	1.00
##000000	4.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6880B4

Deuteranopia (green-blind)

#5B76B1

Tritanopia (blue-blind)

#168990

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #517db2;
/* rgb */ color: rgb(81, 125, 178);
/* oklch */ color: oklch(58.1% 0.096 253.8);

Tailwind

colors: {
  custom: {
    50: '#88a2c9',
    500: '#517db2',
    950: '#000000',
  },
}

SCSS

$custom: #517db2;
$custom-light: #88a2c9;
$custom-dark: #000000;

JSON

{
  "hex": "#517db2",
  "rgb": {
    "r": 81,
    "g": 125,
    "b": 178
  },
  "hsl": {
    "h": 212.784,
    "s": 38.645,
    "l": 50.784
  },
  "oklch": {
    "l": 0.58082,
    "c": 0.09553,
    "h": 253.8
  },
  "luminance": 0.19631
}

Semantic roles & 50–950 ramp

primary

#517DB2

secondary

#C5B19A

accent

#9959CF

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0F13

muted

#7D7E82

Preview Lab

Preview with #517DB2

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

Preview Lab → · Contrast checker → · Palette generator →