#3878CA#3878CA

#3878CA is a mid, vivid cyan. Relative luminance 0.185; OKLCH L 57.2% C 0.143 H 255.9°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#3878CA
RGB	rgb(56, 120, 202)
HSL	hsl(214, 58%, 51%)
HSV	hsv(214, 72%, 79%)
CMYK	cmyk(72.3%, 40.6%, 0%, 20.8%)
CIE-LAB	lab(50.14, 7.29, -48.50)
CIE-LCH	lch(50.14, 49.05, 278.55°)
OKLab	oklab(57.19% -0.0348 -0.1385)
OKLCH	oklch(57.19% 0.143 255.9)
XYZ	xyz(19.0041, 18.5359, 58.4419)
Luminance	0.1854 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3878CA #CA8A38

analogous

#38C1CA #3878CA #4138CA

triadic

#3878CA #CA3878 #78CA38

tetradic

#3878CA #CA38C1 #CA8A38 #38CA41

square

#3878CA #CA38C1 #CA8A38 #38CA41

split-complementary

#3878CA #CA4138 #C1CA38

monochromatic

#1D3F6B #295B9B #3878CA #6899D7 #99BAE4

Accessibility & contrast

On white

4.46

#3878CA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.71

#3878CA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3878CA

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3878CA	#FFFFFF	#000000	##000000
##3878CA	1.00	4.46	4.71	4.71
#FFFFFF	4.46	1.00	21.00	21.00
#000000	4.71	21.00	1.00	1.00
##000000	4.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#517FCD

Deuteranopia (green-blind)

#3971C8

Tritanopia (blue-blind)

#008B97

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3878ca;
/* rgb */ color: rgb(56, 120, 202);
/* oklch */ color: oklch(57.2% 0.143 255.9);

Tailwind

colors: {
  custom: {
    50: '#819eda',
    500: '#3878ca',
    950: '#000000',
  },
}

SCSS

$custom: #3878ca;
$custom-light: #819eda;
$custom-dark: #000000;

JSON

{
  "hex": "#3878ca",
  "rgb": {
    "r": 56,
    "g": 120,
    "b": 202
  },
  "hsl": {
    "h": 213.699,
    "s": 57.937,
    "l": 50.588
  },
  "oklch": {
    "l": 0.57195,
    "c": 0.14277,
    "h": 255.9
  },
  "luminance": 0.18538
}

Semantic roles & 50–950 ramp

primary

#3878CA

secondary

#CFB38E

accent

#9D47E1

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3878CA

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

Preview Lab → · Contrast checker → · Palette generator →