#3C78CD#3C78CD

#3C78CD is a mid, vivid blue. Relative luminance 0.188; OKLCH L 57.5% C 0.145 H 257.5°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#3C78CD
RGB	rgb(60, 120, 205)
HSL	hsl(215, 59%, 52%)
HSV	hsv(215, 71%, 80%)
CMYK	cmyk(70.7%, 41.5%, 0%, 19.6%)
CIE-LAB	lab(50.45, 8.95, -49.71)
CIE-LCH	lch(50.45, 50.51, 280.20°)
OKLab	oklab(57.53% -0.0314 -0.1419)
OKLCH	oklch(57.53% 0.145 257.5)
XYZ	xyz(19.5954, 18.7993, 60.3417)
Luminance	0.1880 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3C78CD #CD913C

analogous

#3CC1CD #3C78CD #483CCD

triadic

#3C78CD #CD3C78 #78CD3C

tetradic

#3C78CD #CD3CC1 #CD913C #3CCD48

square

#3C78CD #CD3CC1 #CD913C #3CCD48

split-complementary

#3C78CD #CD483C #C1CD3C

monochromatic

#1D4071 #2A5CA2 #3C78CD #6D9AD9 #9DBBE6

Accessibility & contrast

On white

4.41

#3C78CD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#3C78CD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3C78CD

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3C78CD	#FFFFFF	#000000	##000000
##3C78CD	1.00	4.41	4.76	4.76
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.76	21.00	1.00	1.00
##000000	4.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#507FD0

Deuteranopia (green-blind)

#3872CB

Tritanopia (blue-blind)

#008C98

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3c78cd;
/* rgb */ color: rgb(60, 120, 205);
/* oklch */ color: oklch(57.5% 0.145 257.5);

Tailwind

colors: {
  custom: {
    50: '#839edd',
    500: '#3c78cd',
    950: '#000000',
  },
}

SCSS

$custom: #3c78cd;
$custom-light: #839edd;
$custom-dark: #000000;

JSON

{
  "hex": "#3c78cd",
  "rgb": {
    "r": 60,
    "g": 120,
    "b": 205
  },
  "hsl": {
    "h": 215.172,
    "s": 59.184,
    "l": 51.961
  },
  "oklch": {
    "l": 0.57532,
    "c": 0.14539,
    "h": 257.5
  },
  "luminance": 0.18801
}

Semantic roles & 50–950 ramp

primary

#3C78CD

secondary

#D2B893

accent

#A145E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3C78CD

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

Preview Lab → · Contrast checker → · Palette generator →