#5178DF#5178DF

#5178DF is a mid, vivid blue. Relative luminance 0.205; OKLCH L 59.6% C 0.163 H 266.0°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#5178DF
RGB	rgb(81, 120, 223)
HSL	hsl(224, 69%, 60%)
HSV	hsv(224, 64%, 87%)
CMYK	cmyk(63.7%, 46.2%, 0%, 12.5%)
CIE-LAB	lab(52.41, 18.63, -56.72)
CIE-LCH	lch(52.41, 59.70, 288.18°)
OKLab	oklab(59.63% -0.0112 -0.1622)
OKLCH	oklch(59.63% 0.163 266)
XYZ	xyz(23.4245, 20.5078, 72.5217)
Luminance	0.2051 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5178DF #DFB851

analogous

#51BFDF #5178DF #7151DF

triadic

#5178DF #DF5178 #78DF51

tetradic

#5178DF #DF51BF #DFB851 #51DF71

square

#5178DF #DF51BF #DFB851 #51DF71

split-complementary

#5178DF #DF7151 #BFDF51

monochromatic

#1C3F99 #2654CD #5178DF #85A0E9 #B8C8F2

Accessibility & contrast

On white

4.12

#5178DF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#5178DF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5178DF

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5178DF	#FFFFFF	#000000	##000000
##5178DF	1.00	4.12	5.10	5.10
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.10	21.00	1.00	1.00
##000000	5.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4584E3

Deuteranopia (green-blind)

#2A77DD

Tritanopia (blue-blind)

#0090A1

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #5178df;
/* rgb */ color: rgb(81, 120, 223);
/* oklch */ color: oklch(59.6% 0.163 266.0);

Tailwind

colors: {
  custom: {
    50: '#8f9ee9',
    500: '#5178df',
    950: '#000000',
  },
}

SCSS

$custom: #5178df;
$custom-light: #8f9ee9;
$custom-dark: #000000;

JSON

{
  "hex": "#5178df",
  "rgb": {
    "r": 81,
    "g": 120,
    "b": 223
  },
  "hsl": {
    "h": 223.521,
    "s": 68.932,
    "l": 59.608
  },
  "oklch": {
    "l": 0.59626,
    "c": 0.16259,
    "h": 266
  },
  "luminance": 0.2051
}

Semantic roles & 50–950 ramp

primary

#5178DF

secondary

#E1D2AA

accent

#BC3CEC

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #5178DF

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

Preview Lab → · Contrast checker → · Palette generator →