#5178EB#5178EB

#5178EB is a mid, vivid blue. Relative luminance 0.212; OKLCH L 60.4% C 0.179 H 266.9°. Best body text is #000000 at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#5178EB
RGB	rgb(81, 120, 235)
HSL	hsl(225, 79%, 62%)
HSV	hsv(225, 66%, 92%)
CMYK	cmyk(65.5%, 48.9%, 0%, 7.8%)
CIE-LAB	lab(53.14, 22.75, -62.26)
CIE-LCH	lch(53.14, 66.29, 290.07°)
OKLab	oklab(60.43% -0.0097 -0.1785)
OKLCH	oklch(60.43% 0.179 266.9)
XYZ	xyz(25.1000, 21.1781, 81.3462)
Luminance	0.2118 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5178EB #EBC451

analogous

#51C5EB #5178EB #7751EB

triadic

#5178EB #EB5178 #78EB51

tetradic

#5178EB #EB51C5 #EBC451 #51EB77

square

#5178EB #EB51C5 #EBC451 #51EB77

split-complementary

#5178EB #EB7751 #C5EB51

monochromatic

#143BAE #1A4DE5 #5178EB #88A3F1 #BFCDF8

Accessibility & contrast

On white

4.01

#5178EB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.24

#5178EB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5178EB

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5178EB	#FFFFFF	#000000	##000000
##5178EB	1.00	4.01	5.24	5.24
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.24	21.00	1.00	1.00
##000000	5.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3886EF

Deuteranopia (green-blind)

#0878E9

Tritanopia (blue-blind)

#0093A6

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #5178eb;
/* rgb */ color: rgb(81, 120, 235);
/* oklch */ color: oklch(60.4% 0.179 266.9);

Tailwind

colors: {
  custom: {
    50: '#919ef2',
    500: '#5178eb',
    950: '#000000',
  },
}

SCSS

$custom: #5178eb;
$custom-light: #919ef2;
$custom-dark: #000000;

JSON

{
  "hex": "#5178eb",
  "rgb": {
    "r": 81,
    "g": 120,
    "b": 235
  },
  "hsl": {
    "h": 224.805,
    "s": 79.381,
    "l": 61.961
  },
  "oklch": {
    "l": 0.60425,
    "c": 0.17876,
    "h": 266.9
  },
  "luminance": 0.2118
}

Semantic roles & 50–950 ramp

primary

#5178EB

secondary

#E8DAB0

accent

#A70ADC

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #5178EB

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

Preview Lab → · Contrast checker → · Palette generator →