#3C78DF#3C78DF

#3C78DF is a mid, vivid blue. Relative luminance 0.197; OKLCH L 58.7% C 0.169 H 260.4°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#3C78DF
RGB	rgb(60, 120, 223)
HSL	hsl(218, 72%, 55%)
HSV	hsv(218, 73%, 87%)
CMYK	cmyk(73.1%, 46.2%, 0%, 12.5%)
CIE-LAB	lab(51.52, 15.48, -58.19)
CIE-LCH	lch(51.52, 60.22, 284.89°)
OKLab	oklab(58.7% -0.0281 -0.1669)
OKLCH	oklch(58.7% 0.169 260.4)
XYZ	xyz(21.8944, 19.7189, 72.4500)
Luminance	0.1972 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3C78DF #DFA33C

analogous

#3CC9DF #3C78DF #513CDF

triadic

#3C78DF #DF3C78 #78DF3C

tetradic

#3C78DF #DF3CC9 #DFA33C #3CDF51

square

#3C78DF #DF3CC9 #DFA33C #3CDF51

split-complementary

#3C78DF #DF513C #C9DF3C

monochromatic

#17418A #1F5ABF #3C78DF #719CE8 #A5C1F0

Accessibility & contrast

On white

4.25

#3C78DF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#3C78DF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3C78DF

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3C78DF	#FFFFFF	#000000	##000000
##3C78DF	1.00	4.25	4.94	4.94
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4183E3

Deuteranopia (green-blind)

#1A74DD

Tritanopia (blue-blind)

#0090A1

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #3c78df;
/* rgb */ color: rgb(60, 120, 223);
/* oklch */ color: oklch(58.7% 0.169 260.4);

Tailwind

colors: {
  custom: {
    50: '#869eea',
    500: '#3c78df',
    950: '#000000',
  },
}

SCSS

$custom: #3c78df;
$custom-light: #869eea;
$custom-dark: #000000;

JSON

{
  "hex": "#3c78df",
  "rgb": {
    "r": 60,
    "g": 120,
    "b": 223
  },
  "hsl": {
    "h": 217.914,
    "s": 71.806,
    "l": 55.49
  },
  "oklch": {
    "l": 0.587,
    "c": 0.16924,
    "h": 260.4
  },
  "luminance": 0.19721
}

Semantic roles & 50–950 ramp

primary

#3C78DF

secondary

#DDC499

accent

#AC39EF

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #3C78DF

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

Preview Lab → · Contrast checker → · Palette generator →