#517BED#517BED

#517BED is a mid, vivid blue. Relative luminance 0.220; OKLCH L 61.2% C 0.178 H 266.1°. Best body text is #000000 at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#517BED
RGB	rgb(81, 123, 237)
HSL	hsl(224, 81%, 62%)
HSV	hsv(224, 66%, 93%)
CMYK	cmyk(65.8%, 48.1%, 0%, 7.1%)
CIE-LAB	lab(54.06, 21.60, -61.91)
CIE-LCH	lch(54.06, 65.57, 289.23°)
OKLab	oklab(61.16% -0.0122 -0.1774)
OKLCH	oklch(61.16% 0.178 266.1)
XYZ	xyz(25.7571, 22.0272, 82.9986)
Luminance	0.2203 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517BED #EDC351

analogous

#51C9ED #517BED #7551ED

triadic

#517BED #ED517B #7BED51

tetradic

#517BED #ED51C9 #EDC351 #51ED75

square

#517BED #ED51C9 #EDC351 #51ED75

split-complementary

#517BED #ED7551 #C9ED51

monochromatic

#123DB1 #1A51E7 #517BED #88A5F3 #C0CFF8

Accessibility & contrast

On white

3.88

#517BED on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.41

#517BED on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517BED

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517BED	#FFFFFF	#000000	##000000
##517BED	1.00	3.88	5.41	5.41
#FFFFFF	3.88	1.00	21.00	21.00
#000000	5.41	21.00	1.00	1.00
##000000	5.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E89F1

Deuteranopia (green-blind)

#157BEB

Tritanopia (blue-blind)

#0096A9

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #517bed;
/* rgb */ color: rgb(81, 123, 237);
/* oklch */ color: oklch(61.2% 0.178 266.1);

Tailwind

colors: {
  custom: {
    50: '#91a0f3',
    500: '#517bed',
    950: '#000000',
  },
}

SCSS

$custom: #517bed;
$custom-light: #91a0f3;
$custom-dark: #000000;

JSON

{
  "hex": "#517bed",
  "rgb": {
    "r": 81,
    "g": 123,
    "b": 237
  },
  "hsl": {
    "h": 223.846,
    "s": 81.25,
    "l": 62.353
  },
  "oklch": {
    "l": 0.61159,
    "c": 0.17785,
    "h": 266.1
  },
  "luminance": 0.2203
}

Semantic roles & 50–950 ramp

primary

#517BED

secondary

#E9DAB0

accent

#A408DE

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #517BED

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

Preview Lab → · Contrast checker → · Palette generator →