#517EDA#517EDA

#517EDA is a mid, vivid blue. Relative luminance 0.217; OKLCH L 60.6% C 0.149 H 263.1°. Best body text is #000000 at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#517EDA
RGB	rgb(81, 126, 218)
HSL	hsl(220, 65%, 59%)
HSV	hsv(220, 63%, 85%)
CMYK	cmyk(62.8%, 42.2%, 0%, 14.5%)
CIE-LAB	lab(53.74, 13.24, -51.77)
CIE-LCH	lch(53.74, 53.44, 284.34°)
OKLab	oklab(60.56% -0.018 -0.1476)
OKLCH	oklch(60.56% 0.149 263.1)
XYZ	xyz(23.5047, 21.7308, 69.2719)
Luminance	0.2173 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517EDA #DAAD51

analogous

#51C2DA #517EDA #6851DA

triadic

#517EDA #DA517E #7EDA51

tetradic

#517EDA #DA51C2 #DAAD51 #51DA68

square

#517EDA #DA51C2 #DAAD51 #51DA68

split-complementary

#517EDA #DA6851 #C2DA51

monochromatic

#1F4592 #2A5CC4 #517EDA #83A3E5 #B6C9EF

Accessibility & contrast

On white

3.93

#517EDA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.35

#517EDA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517EDA

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517EDA	#FFFFFF	#000000	##000000
##517EDA	1.00	3.93	5.35	5.35
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.35	21.00	1.00	1.00
##000000	5.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5487DE

Deuteranopia (green-blind)

#3F7BD8

Tritanopia (blue-blind)

#0093A1

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #517eda;
/* rgb */ color: rgb(81, 126, 218);
/* oklch */ color: oklch(60.6% 0.149 263.1);

Tailwind

colors: {
  custom: {
    50: '#8ea2e6',
    500: '#517eda',
    950: '#000000',
  },
}

SCSS

$custom: #517eda;
$custom-light: #8ea2e6;
$custom-dark: #000000;

JSON

{
  "hex": "#517eda",
  "rgb": {
    "r": 81,
    "g": 126,
    "b": 218
  },
  "hsl": {
    "h": 220.292,
    "s": 64.929,
    "l": 58.627
  },
  "oklch": {
    "l": 0.60556,
    "c": 0.14867,
    "h": 263.1
  },
  "luminance": 0.21733
}

Semantic roles & 50–950 ramp

primary

#517EDA

secondary

#DECDA8

accent

#B140E8

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0D0F16

muted

#7E7E84

Preview Lab

Preview with #517EDA

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

Preview Lab → · Contrast checker → · Palette generator →