#3C78CF#3C78CF

#3C78CF is a mid, vivid blue. Relative luminance 0.189; OKLCH L 57.7% C 0.148 H 257.9°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#3C78CF
RGB	rgb(60, 120, 207)
HSL	hsl(216, 60%, 52%)
HSV	hsv(216, 71%, 81%)
CMYK	cmyk(71%, 42%, 0%, 18.8%)
CIE-LAB	lab(50.57, 9.67, -50.66)
CIE-LCH	lch(50.57, 51.58, 280.81°)
OKLab	oklab(57.66% -0.031 -0.1447)
OKLCH	oklch(57.66% 0.148 257.9)
XYZ	xyz(19.8383, 18.8965, 61.6212)
Luminance	0.1890 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3C78CF #CF933C

analogous

#3CC2CF #3C78CF #493CCF

triadic

#3C78CF #CF3C78 #78CF3C

tetradic

#3C78CF #CF3CC2 #CF933C #3CCF49

square

#3C78CF #CF3CC2 #CF933C #3CCF49

split-complementary

#3C78CF #CF493C #C2CF3C

monochromatic

#1D4074 #295BA5 #3C78CF #6D9ADB #9EBCE7

Accessibility & contrast

On white

4.39

#3C78CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#3C78CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3C78CF

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3C78CF	#FFFFFF	#000000	##000000
##3C78CF	1.00	4.39	4.78	4.78
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E80D2

Deuteranopia (green-blind)

#3572CD

Tritanopia (blue-blind)

#008C99

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3c78cf;
/* rgb */ color: rgb(60, 120, 207);
/* oklch */ color: oklch(57.7% 0.148 257.9);

Tailwind

colors: {
  custom: {
    50: '#839ede',
    500: '#3c78cf',
    950: '#000000',
  },
}

SCSS

$custom: #3c78cf;
$custom-light: #839ede;
$custom-dark: #000000;

JSON

{
  "hex": "#3c78cf",
  "rgb": {
    "r": 60,
    "g": 120,
    "b": 207
  },
  "hsl": {
    "h": 215.51,
    "s": 60.494,
    "l": 52.353
  },
  "oklch": {
    "l": 0.57658,
    "c": 0.14803,
    "h": 257.9
  },
  "luminance": 0.18899
}

Semantic roles & 50–950 ramp

primary

#3C78CF

secondary

#D3B993

accent

#A344E4

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3C78CF

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

Preview Lab → · Contrast checker → · Palette generator →