#3B78CE#3B78CE

#3B78CE is a mid, vivid blue. Relative luminance 0.188; OKLCH L 57.6% C 0.147 H 257.5°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#3B78CE
RGB	rgb(59, 120, 206)
HSL	hsl(215, 60%, 52%)
HSV	hsv(215, 71%, 81%)
CMYK	cmyk(71.4%, 41.7%, 0%, 19.2%)
CIE-LAB	lab(50.47, 9.16, -50.25)
CIE-LCH	lch(50.47, 51.07, 280.34°)
OKLab	oklab(57.56% -0.0319 -0.1435)
OKLCH	oklch(57.56% 0.147 257.5)
XYZ	xyz(19.6566, 18.8169, 60.9766)
Luminance	0.1882 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B78CE #CE913B

analogous

#3BC2CE #3B78CE #483BCE

triadic

#3B78CE #CE3B78 #78CE3B

tetradic

#3B78CE #CE3BC2 #CE913B #3BCE48

square

#3B78CE #CE3BC2 #CE913B #3BCE48

split-complementary

#3B78CE #CE483B #C2CE3B

monochromatic

#1D4072 #295CA3 #3B78CE #6C9ADA #9DBBE6

Accessibility & contrast

On white

4.41

#3B78CE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#3B78CE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B78CE

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B78CE	#FFFFFF	#000000	##000000
##3B78CE	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)

#4F7FD1

Deuteranopia (green-blind)

#3672CC

Tritanopia (blue-blind)

#008C99

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3b78ce;
/* rgb */ color: rgb(59, 120, 206);
/* oklch */ color: oklch(57.6% 0.147 257.5);

Tailwind

colors: {
  custom: {
    50: '#829edd',
    500: '#3b78ce',
    950: '#000000',
  },
}

SCSS

$custom: #3b78ce;
$custom-light: #829edd;
$custom-dark: #000000;

JSON

{
  "hex": "#3b78ce",
  "rgb": {
    "r": 59,
    "g": 120,
    "b": 206
  },
  "hsl": {
    "h": 215.102,
    "s": 60,
    "l": 51.961
  },
  "oklch": {
    "l": 0.57557,
    "c": 0.14705,
    "h": 257.5
  },
  "luminance": 0.18819
}

Semantic roles & 50–950 ramp

primary

#3B78CE

secondary

#D3B892

accent

#A145E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3B78CE

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

Preview Lab → · Contrast checker → · Palette generator →