#3B78D5#3B78D5

#3B78D5 is a mid, vivid blue. Relative luminance 0.192; OKLCH L 58.0% C 0.156 H 258.7°. Best body text is #000000 at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#3B78D5
RGB	rgb(59, 120, 213)
HSL	hsl(216, 65%, 53%)
HSV	hsv(216, 72%, 84%)
CMYK	cmyk(72.3%, 43.7%, 0%, 16.5%)
CIE-LAB	lab(50.88, 11.71, -53.57)
CIE-LCH	lch(50.88, 54.84, 282.33°)
OKLab	oklab(58% -0.0305 -0.1533)
OKLCH	oklch(58% 0.156 258.7)
XYZ	xyz(20.5260, 19.1646, 65.5553)
Luminance	0.1917 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B78D5 #D5983B

analogous

#3BC5D5 #3B78D5 #4B3BD5

triadic

#3B78D5 #D53B78 #78D53B

tetradic

#3B78D5 #D53BC5 #D5983B #3BD54B

square

#3B78D5 #D53BC5 #D5983B #3BD54B

split-complementary

#3B78D5 #D54B3B #C5D53B

monochromatic

#1A417B #255BAE #3B78D5 #6D9BE0 #A0BDEB

Accessibility & contrast

On white

4.34

#3B78D5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.83

#3B78D5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B78D5

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B78D5	#FFFFFF	#000000	##000000
##3B78D5	1.00	4.34	4.83	4.83
#FFFFFF	4.34	1.00	21.00	21.00
#000000	4.83	21.00	1.00	1.00
##000000	4.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A81D9

Deuteranopia (green-blind)

#2D73D3

Tritanopia (blue-blind)

#008E9C

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #3b78d5;
/* rgb */ color: rgb(59, 120, 213);
/* oklch */ color: oklch(58.0% 0.156 258.7);

Tailwind

colors: {
  custom: {
    50: '#849ee2',
    500: '#3b78d5',
    950: '#000000',
  },
}

SCSS

$custom: #3b78d5;
$custom-light: #849ee2;
$custom-dark: #000000;

JSON

{
  "hex": "#3b78d5",
  "rgb": {
    "r": 59,
    "g": 120,
    "b": 213
  },
  "hsl": {
    "h": 216.234,
    "s": 64.706,
    "l": 53.333
  },
  "oklch": {
    "l": 0.58003,
    "c": 0.15632,
    "h": 258.7
  },
  "luminance": 0.19167
}

Semantic roles & 50–950 ramp

primary

#3B78D5

secondary

#D7BD95

accent

#A540E8

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3B78D5

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

Preview Lab → · Contrast checker → · Palette generator →