#517CD2#517CD2

#517CD2 is a mid, vivid blue. Relative luminance 0.208; OKLCH L 59.6% C 0.140 H 262.8°. Best body text is #000000 at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#517CD2
RGB	rgb(81, 124, 210)
HSL	hsl(220, 59%, 57%)
HSV	hsv(220, 61%, 82%)
CMYK	cmyk(61.4%, 41%, 0%, 17.6%)
CIE-LAB	lab(52.75, 11.74, -48.84)
CIE-LCH	lch(52.75, 50.23, 283.51°)
OKLab	oklab(59.65% -0.0175 -0.139)
OKLCH	oklch(59.65% 0.14 262.8)
XYZ	xyz(22.2298, 20.8158, 63.8066)
Luminance	0.2082 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517CD2 #D2A751

analogous

#51BDD2 #517CD2 #6751D2

triadic

#517CD2 #D2517C #7CD251

tetradic

#517CD2 #D251BD #D2A751 #51D267

square

#517CD2 #D251BD #D2A751 #51D267

split-complementary

#517CD2 #D26751 #BDD251

monochromatic

#234486 #2F5CB7 #517CD2 #82A1DF #B2C5EB

Accessibility & contrast

On white

4.07

#517CD2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.16

#517CD2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517CD2

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517CD2	#FFFFFF	#000000	##000000
##517CD2	1.00	4.07	5.16	5.16
#FFFFFF	4.07	1.00	21.00	21.00
#000000	5.16	21.00	1.00	1.00
##000000	5.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5684D5

Deuteranopia (green-blind)

#4378D0

Tritanopia (blue-blind)

#008F9D

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #517cd2;
/* rgb */ color: rgb(81, 124, 210);
/* oklch */ color: oklch(59.6% 0.140 262.8);

Tailwind

colors: {
  custom: {
    50: '#8da1e0',
    500: '#517cd2',
    950: '#000000',
  },
}

SCSS

$custom: #517cd2;
$custom-light: #8da1e0;
$custom-dark: #000000;

JSON

{
  "hex": "#517cd2",
  "rgb": {
    "r": 81,
    "g": 124,
    "b": 210
  },
  "hsl": {
    "h": 220,
    "s": 58.904,
    "l": 57.059
  },
  "oklch": {
    "l": 0.59646,
    "c": 0.14009,
    "h": 262.8
  },
  "luminance": 0.20818
}

Semantic roles & 50–950 ramp

primary

#517CD2

secondary

#DAC8A5

accent

#AE46E2

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #517CD2

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

Preview Lab → · Contrast checker → · Palette generator →