#3874E3#3874E3

#3874E3 is a mid, vivid blue. Relative luminance 0.189; OKLCH L 58.0% C 0.180 H 261.4°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#3874E3
RGB	rgb(56, 116, 227)
HSL	hsl(219, 75%, 55%)
HSV	hsv(219, 75%, 89%)
CMYK	cmyk(75.3%, 48.9%, 0%, 11%)
CIE-LAB	lab(50.54, 18.95, -62.03)
CIE-LCH	lch(50.54, 64.86, 286.99°)
OKLab	oklab(57.99% -0.027 -0.1783)
OKLCH	oklch(57.99% 0.18 261.4)
XYZ	xyz(21.7364, 18.8751, 75.1558)
Luminance	0.1888 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3874E3 #E3A738

analogous

#38CAE3 #3874E3 #5138E3

triadic

#3874E3 #E33874 #74E338

tetradic

#3874E3 #E338CA #E3A738 #38E351

square

#3874E3 #E338CA #E3A738 #38E351

split-complementary

#3874E3 #E35138 #CAE338

monochromatic

#143E8D #1B56C2 #3874E3 #6E99EB #A3BFF2

Accessibility & contrast

On white

4.40

#3874E3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#3874E3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3874E3

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3874E3	#FFFFFF	#000000	##000000
##3874E3	1.00	4.40	4.78	4.78
#FFFFFF	4.40	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)

#3281E7

Deuteranopia (green-blind)

#0071E1

Tritanopia (blue-blind)

#008FA1

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3874e3;
/* rgb */ color: rgb(56, 116, 227);
/* oklch */ color: oklch(58.0% 0.180 261.4);

Tailwind

colors: {
  custom: {
    50: '#869bec',
    500: '#3874e3',
    950: '#000000',
  },
}

SCSS

$custom: #3874e3;
$custom-light: #869bec;
$custom-dark: #000000;

JSON

{
  "hex": "#3874e3",
  "rgb": {
    "r": 56,
    "g": 116,
    "b": 227
  },
  "hsl": {
    "h": 218.947,
    "s": 75.33,
    "l": 55.49
  },
  "oklch": {
    "l": 0.57992,
    "c": 0.18034,
    "h": 261.4
  },
  "luminance": 0.18878
}

Semantic roles & 50–950 ramp

primary

#3874E3

secondary

#DFC698

accent

#B036F2

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #3874E3

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

Preview Lab → · Contrast checker → · Palette generator →