#5179DD#5179DD

#5179DD is a mid, vivid blue. Relative luminance 0.206; OKLCH L 59.7% C 0.159 H 265.5°. Best body text is #000000 at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#5179DD
RGB	rgb(81, 121, 221)
HSL	hsl(223, 67%, 59%)
HSV	hsv(223, 63%, 87%)
CMYK	cmyk(63.3%, 45.2%, 0%, 13.3%)
CIE-LAB	lab(52.56, 17.33, -55.35)
CIE-LCH	lch(52.56, 58.00, 287.38°)
OKLab	oklab(59.7% -0.0125 -0.1582)
OKLCH	oklch(59.7% 0.159 265.5)
XYZ	xyz(23.2773, 20.6424, 71.1503)
Luminance	0.2064 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5179DD #DDB551

analogous

#51BFDD #5179DD #6F51DD

triadic

#5179DD #DD5179 #79DD51

tetradic

#5179DD #DD51BF #DDB551 #51DD6F

square

#5179DD #DD51BF #DDB551 #51DD6F

split-complementary

#5179DD #DD6F51 #BFDD51

monochromatic

#1D4096 #2756C9 #5179DD #84A0E7 #B7C8F1

Accessibility & contrast

On white

4.09

#5179DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.13

#5179DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5179DD

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5179DD	#FFFFFF	#000000	##000000
##5179DD	1.00	4.09	5.13	5.13
#FFFFFF	4.09	1.00	21.00	21.00
#000000	5.13	21.00	1.00	1.00
##000000	5.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4884E1

Deuteranopia (green-blind)

#3077DB

Tritanopia (blue-blind)

#0090A0

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #5179dd;
/* rgb */ color: rgb(81, 121, 221);
/* oklch */ color: oklch(59.7% 0.159 265.5);

Tailwind

colors: {
  custom: {
    50: '#8f9fe8',
    500: '#5179dd',
    950: '#000000',
  },
}

SCSS

$custom: #5179dd;
$custom-light: #8f9fe8;
$custom-dark: #000000;

JSON

{
  "hex": "#5179dd",
  "rgb": {
    "r": 81,
    "g": 121,
    "b": 221
  },
  "hsl": {
    "h": 222.857,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.59702,
    "c": 0.15866,
    "h": 265.5
  },
  "luminance": 0.20645
}

Semantic roles & 50–950 ramp

primary

#5179DD

secondary

#E0D1AA

accent

#B93EEA

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #5179DD

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

Preview Lab → · Contrast checker → · Palette generator →