#5178DC#5178DC

#5178DC is a mid, vivid blue. Relative luminance 0.203; OKLCH L 59.4% C 0.159 H 265.8°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#5178DC
RGB	rgb(81, 120, 220)
HSL	hsl(223, 67%, 59%)
HSV	hsv(223, 63%, 86%)
CMYK	cmyk(63.2%, 45.5%, 0%, 13.7%)
CIE-LAB	lab(52.23, 17.60, -55.32)
CIE-LCH	lch(52.23, 58.05, 287.65°)
OKLab	oklab(59.43% -0.0117 -0.1581)
OKLCH	oklch(59.43% 0.159 265.8)
XYZ	xyz(23.0236, 20.3475, 70.4104)
Luminance	0.2035 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5178DC #DCB551

analogous

#51BEDC #5178DC #7051DC

triadic

#5178DC #DC5178 #78DC51

tetradic

#5178DC #DC51BE #DCB551 #51DC70

square

#5178DC #DC51BE #DCB551 #51DC70

split-complementary

#5178DC #DC7051 #BEDC51

monochromatic

#1E3F95 #2855C8 #5178DC #84A0E6 #B7C7F0

Accessibility & contrast

On white

4.14

#5178DC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#5178DC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5178DC

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5178DC	#FFFFFF	#000000	##000000
##5178DC	1.00	4.14	5.07	5.07
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.07	21.00	1.00	1.00
##000000	5.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4783E0

Deuteranopia (green-blind)

#2F77DA

Tritanopia (blue-blind)

#008F9F

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #5178dc;
/* rgb */ color: rgb(81, 120, 220);
/* oklch */ color: oklch(59.4% 0.159 265.8);

Tailwind

colors: {
  custom: {
    50: '#8f9ee7',
    500: '#5178dc',
    950: '#000000',
  },
}

SCSS

$custom: #5178dc;
$custom-light: #8f9ee7;
$custom-dark: #000000;

JSON

{
  "hex": "#5178dc",
  "rgb": {
    "r": 81,
    "g": 120,
    "b": 220
  },
  "hsl": {
    "h": 223.165,
    "s": 66.507,
    "l": 59.02
  },
  "oklch": {
    "l": 0.59431,
    "c": 0.1585,
    "h": 265.8
  },
  "luminance": 0.2035
}

Semantic roles & 50–950 ramp

primary

#5178DC

secondary

#E0D0A9

accent

#B93EE9

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #5178DC

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

Preview Lab → · Contrast checker → · Palette generator →