#5178DA#5178DA

#5178DA is a mid, vivid blue. Relative luminance 0.202; OKLCH L 59.3% C 0.156 H 265.6°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#5178DA
RGB	rgb(81, 120, 218)
HSL	hsl(223, 65%, 59%)
HSV	hsv(223, 63%, 85%)
CMYK	cmyk(62.8%, 45%, 0%, 14.5%)
CIE-LAB	lab(52.11, 16.91, -54.38)
CIE-LCH	lch(52.11, 56.95, 287.28°)
OKLab	oklab(59.3% -0.012 -0.1553)
OKLCH	oklch(59.3% 0.156 265.6)
XYZ	xyz(22.7603, 20.2422, 69.0238)
Luminance	0.2024 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5178DA #DAB351

analogous

#51BCDA #5178DA #6E51DA

triadic

#5178DA #DA5178 #78DA51

tetradic

#5178DA #DA51BC #DAB351 #51DA6E

square

#5178DA #DA51BC #DAB351 #51DA6E

split-complementary

#5178DA #DA6E51 #BCDA51

monochromatic

#1F4092 #2A56C4 #5178DA #839FE5 #B6C6EF

Accessibility & contrast

On white

4.16

#5178DA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#5178DA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5178DA

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5178DA	#FFFFFF	#000000	##000000
##5178DA	1.00	4.16	5.05	5.05
#FFFFFF	4.16	1.00	21.00	21.00
#000000	5.05	21.00	1.00	1.00
##000000	5.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4983DE

Deuteranopia (green-blind)

#3276D8

Tritanopia (blue-blind)

#008E9E

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #5178da;
/* rgb */ color: rgb(81, 120, 218);
/* oklch */ color: oklch(59.3% 0.156 265.6);

Tailwind

colors: {
  custom: {
    50: '#8e9ee6',
    500: '#5178da',
    950: '#000000',
  },
}

SCSS

$custom: #5178da;
$custom-light: #8e9ee6;
$custom-dark: #000000;

JSON

{
  "hex": "#5178da",
  "rgb": {
    "r": 81,
    "g": 120,
    "b": 218
  },
  "hsl": {
    "h": 222.92,
    "s": 64.929,
    "l": 58.627
  },
  "oklch": {
    "l": 0.59303,
    "c": 0.15577,
    "h": 265.6
  },
  "luminance": 0.20244
}

Semantic roles & 50–950 ramp

primary

#5178DA

secondary

#DECFA8

accent

#B840E8

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #5178DA

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

Preview Lab → · Contrast checker → · Palette generator →