#5177DD#5177DD

#5177DD is a mid, vivid blue. Relative luminance 0.202; OKLCH L 59.3% C 0.161 H 266.2°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#5177DD
RGB	rgb(81, 119, 221)
HSL	hsl(224, 67%, 59%)
HSV	hsv(224, 63%, 87%)
CMYK	cmyk(63.3%, 46.2%, 0%, 13.3%)
CIE-LAB	lab(52.02, 18.56, -56.21)
CIE-LCH	lch(52.02, 59.20, 288.27°)
OKLab	oklab(59.29% -0.0106 -0.1607)
OKLCH	oklch(59.29% 0.161 266.2)
XYZ	xyz(23.0368, 20.1614, 71.0701)
Luminance	0.2016 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5177DD #DDB751

analogous

#51BDDD #5177DD #7151DD

triadic

#5177DD #DD5177 #77DD51

tetradic

#5177DD #DD51BD #DDB751 #51DD71

square

#5177DD #DD51BD #DDB751 #51DD71

split-complementary

#5177DD #DD7151 #BDDD51

monochromatic

#1D3E96 #2753C9 #5177DD #849FE7 #B7C7F1

Accessibility & contrast

On white

4.17

#5177DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#5177DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5177DD

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5177DD	#FFFFFF	#000000	##000000
##5177DD	1.00	4.17	5.03	5.03
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.03	21.00	1.00	1.00
##000000	5.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4483E1

Deuteranopia (green-blind)

#2B76DB

Tritanopia (blue-blind)

#008E9F

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #5177dd;
/* rgb */ color: rgb(81, 119, 221);
/* oklch */ color: oklch(59.3% 0.161 266.2);

Tailwind

colors: {
  custom: {
    50: '#8f9de8',
    500: '#5177dd',
    950: '#000000',
  },
}

SCSS

$custom: #5177dd;
$custom-light: #8f9de8;
$custom-dark: #000000;

JSON

{
  "hex": "#5177dd",
  "rgb": {
    "r": 81,
    "g": 119,
    "b": 221
  },
  "hsl": {
    "h": 223.714,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.59291,
    "c": 0.16108,
    "h": 266.2
  },
  "luminance": 0.20163
}

Semantic roles & 50–950 ramp

primary

#5177DD

secondary

#E0D1AA

accent

#BB3EEA

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #5177DD

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

Preview Lab → · Contrast checker → · Palette generator →