#3B78DE#3B78DE

#3B78DE is a mid, vivid blue. Relative luminance 0.196; OKLCH L 58.6% C 0.168 H 260.1°. Best body text is #000000 at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#3B78DE
RGB	rgb(59, 120, 222)
HSL	hsl(218, 71%, 55%)
HSV	hsv(218, 73%, 87%)
CMYK	cmyk(73.4%, 45.9%, 0%, 12.9%)
CIE-LAB	lab(51.42, 14.99, -57.79)
CIE-LCH	lch(51.42, 59.70, 284.54°)
OKLab	oklab(58.6% -0.029 -0.1657)
OKLCH	oklch(58.6% 0.168 260.1)
XYZ	xyz(21.7002, 19.6343, 71.7392)
Luminance	0.1964 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B78DE #DEA13B

analogous

#3BC9DE #3B78DE #4F3BDE

triadic

#3B78DE #DE3B78 #78DE3B

tetradic

#3B78DE #DE3BC9 #DEA13B #3BDE4F

square

#3B78DE #DE3BC9 #DEA13B #3BDE4F

split-complementary

#3B78DE #DE4F3B #C9DE3B

monochromatic

#174188 #205ABC #3B78DE #6F9CE7 #A4C0F0

Accessibility & contrast

On white

4.26

#3B78DE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.93

#3B78DE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B78DE

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B78DE	#FFFFFF	#000000	##000000
##3B78DE	1.00	4.26	4.93	4.93
#FFFFFF	4.26	1.00	21.00	21.00
#000000	4.93	21.00	1.00	1.00
##000000	4.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4283E2

Deuteranopia (green-blind)

#1B74DC

Tritanopia (blue-blind)

#0090A0

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #3b78de;
/* rgb */ color: rgb(59, 120, 222);
/* oklch */ color: oklch(58.6% 0.168 260.1);

Tailwind

colors: {
  custom: {
    50: '#869ee9',
    500: '#3b78de',
    950: '#000000',
  },
}

SCSS

$custom: #3b78de;
$custom-light: #869ee9;
$custom-dark: #000000;

JSON

{
  "hex": "#3b78de",
  "rgb": {
    "r": 59,
    "g": 120,
    "b": 222
  },
  "hsl": {
    "h": 217.546,
    "s": 71.179,
    "l": 55.098
  },
  "oklch": {
    "l": 0.58596,
    "c": 0.16823,
    "h": 260.1
  },
  "luminance": 0.19637
}

Semantic roles & 50–950 ramp

primary

#3B78DE

secondary

#DDC398

accent

#AB3AEE

background

#F8F9FE

surface

#F0F2FD

border

#CBCCD5

text

#0D0E16

muted

#7D7E84

Preview Lab

Preview with #3B78DE

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

Preview Lab → · Contrast checker → · Palette generator →