#5177E4#5177E4

#5177E4 is a mid, vivid blue. Relative luminance 0.205; OKLCH L 59.8% C 0.171 H 266.8°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#5177E4
RGB	rgb(81, 119, 228)
HSL	hsl(224, 73%, 61%)
HSV	hsv(224, 64%, 89%)
CMYK	cmyk(64.5%, 47.8%, 0%, 10.6%)
CIE-LAB	lab(52.44, 20.96, -59.47)
CIE-LCH	lch(52.44, 63.05, 289.42°)
OKLab	oklab(59.75% -0.0096 -0.1703)
OKLCH	oklch(59.75% 0.171 266.8)
XYZ	xyz(23.9889, 20.5422, 76.0846)
Luminance	0.2054 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5177E4 #E4BE51

analogous

#51C0E4 #5177E4 #7451E4

triadic

#5177E4 #E45177 #77E451

tetradic

#5177E4 #E451C0 #E4BE51 #51E474

square

#5177E4 #E451C0 #E4BE51 #51E474

split-complementary

#5177E4 #E47451 #C0E451

monochromatic

#193CA2 #2150D7 #5177E4 #86A0EC #BBCAF4

Accessibility & contrast

On white

4.11

#5177E4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#5177E4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5177E4

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5177E4	#FFFFFF	#000000	##000000
##5177E4	1.00	4.11	5.11	5.11
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.11	21.00	1.00	1.00
##000000	5.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E84E8

Deuteranopia (green-blind)

#1D77E2

Tritanopia (blue-blind)

#0090A2

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #5177e4;
/* rgb */ color: rgb(81, 119, 228);
/* oklch */ color: oklch(59.8% 0.171 266.8);

Tailwind

colors: {
  custom: {
    50: '#909ded',
    500: '#5177e4',
    950: '#000000',
  },
}

SCSS

$custom: #5177e4;
$custom-light: #909ded;
$custom-dark: #000000;

JSON

{
  "hex": "#5177e4",
  "rgb": {
    "r": 81,
    "g": 119,
    "b": 228
  },
  "hsl": {
    "h": 224.49,
    "s": 73.134,
    "l": 60.588
  },
  "oklch": {
    "l": 0.59753,
    "c": 0.17057,
    "h": 266.8
  },
  "luminance": 0.20544
}

Semantic roles & 50–950 ramp

primary

#5177E4

secondary

#E4D6AC

accent

#A210D5

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #5177E4

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

Preview Lab → · Contrast checker → · Palette generator →