#3C78D3#3C78D3

#3C78D3 is a mid, vivid blue. Relative luminance 0.191; OKLCH L 57.9% C 0.153 H 258.6°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#3C78D3
RGB	rgb(60, 120, 211)
HSL	hsl(216, 63%, 53%)
HSV	hsv(216, 72%, 83%)
CMYK	cmyk(71.6%, 43.1%, 0%, 17.3%)
CIE-LAB	lab(50.80, 11.12, -52.57)
CIE-LCH	lch(50.80, 53.73, 281.94°)
OKLab	oklab(57.91% -0.0302 -0.1503)
OKLCH	oklch(57.91% 0.153 258.6)
XYZ	xyz(20.3336, 19.0946, 64.2294)
Luminance	0.1910 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3C78D3 #D3973C

analogous

#3CC3D3 #3C78D3 #4B3CD3

triadic

#3C78D3 #D33C78 #78D33C

tetradic

#3C78D3 #D33CC3 #D3973C #3CD34B

square

#3C78D3 #D33CC3 #D3973C #3CD34B

split-complementary

#3C78D3 #D34B3C #C3D33C

monochromatic

#1B4179 #275BAB #3C78D3 #6E9BDE #A0BDEA

Accessibility & contrast

On white

4.36

#3C78D3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#3C78D3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3C78D3

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3C78D3	#FFFFFF	#000000	##000000
##3C78D3	1.00	4.36	4.82	4.82
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B80D7

Deuteranopia (green-blind)

#3072D1

Tritanopia (blue-blind)

#008D9B

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #3c78d3;
/* rgb */ color: rgb(60, 120, 211);
/* oklch */ color: oklch(57.9% 0.153 258.6);

Tailwind

colors: {
  custom: {
    50: '#849ee1',
    500: '#3c78d3',
    950: '#000000',
  },
}

SCSS

$custom: #3c78d3;
$custom-light: #849ee1;
$custom-dark: #000000;

JSON

{
  "hex": "#3c78d3",
  "rgb": {
    "r": 60,
    "g": 120,
    "b": 211
  },
  "hsl": {
    "h": 216.159,
    "s": 63.18,
    "l": 53.137
  },
  "oklch": {
    "l": 0.57912,
    "c": 0.15335,
    "h": 258.6
  },
  "luminance": 0.19097
}

Semantic roles & 50–950 ramp

primary

#3C78D3

secondary

#D6BC95

accent

#A542E6

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3C78D3

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

Preview Lab → · Contrast checker → · Palette generator →