#3879E1#3879E1

#3879E1 is a mid, vivid blue. Relative luminance 0.200; OKLCH L 58.9% C 0.172 H 259.5°. Best body text is #000000 at 4.99:1 contrast (WCAG AA passes).

Color values

HEX	#3879E1
RGB	rgb(56, 121, 225)
HSL	hsl(217, 74%, 55%)
HSV	hsv(217, 75%, 88%)
CMYK	cmyk(75.1%, 46.2%, 0%, 11.8%)
CIE-LAB	lab(51.78, 15.09, -58.91)
CIE-LCH	lch(51.78, 60.81, 284.37°)
OKLab	oklab(58.9% -0.0313 -0.169)
OKLCH	oklch(58.9% 0.172 259.5)
XYZ	xyz(22.0539, 19.9492, 73.9078)
Luminance	0.1995 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3879E1 #E1A038

analogous

#38CEE1 #3879E1 #4B38E1

triadic

#3879E1 #E13879 #79E138

tetradic

#3879E1 #E138CE #E1A038 #38E14B

square

#3879E1 #E138CE #E1A038 #38E14B

split-complementary

#3879E1 #E14B38 #CEE138

monochromatic

#15428A #1D5BBF #3879E1 #6D9DE9 #A2C1F1

Accessibility & contrast

On white

4.21

#3879E1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.99

#3879E1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3879E1

4.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3879E1	#FFFFFF	#000000	##000000
##3879E1	1.00	4.21	4.99	4.99
#FFFFFF	4.21	1.00	21.00	21.00
#000000	4.99	21.00	1.00	1.00
##000000	4.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4184E5

Deuteranopia (green-blind)

#1574DF

Tritanopia (blue-blind)

#0092A2

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #3879e1;
/* rgb */ color: rgb(56, 121, 225);
/* oklch */ color: oklch(58.9% 0.172 259.5);

Tailwind

colors: {
  custom: {
    50: '#859feb',
    500: '#3879e1',
    950: '#000000',
  },
}

SCSS

$custom: #3879e1;
$custom-light: #859feb;
$custom-dark: #000000;

JSON

{
  "hex": "#3879e1",
  "rgb": {
    "r": 56,
    "g": 121,
    "b": 225
  },
  "hsl": {
    "h": 216.923,
    "s": 73.799,
    "l": 55.098
  },
  "oklch": {
    "l": 0.58903,
    "c": 0.17191,
    "h": 259.5
  },
  "luminance": 0.19952
}

Semantic roles & 50–950 ramp

primary

#3879E1

secondary

#DEC397

accent

#A937F0

background

#F8F9FE

surface

#F0F2FD

border

#CBCCD5

text

#0D0E16

muted

#7D7E84

Preview Lab

Preview with #3879E1

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

Preview Lab → · Contrast checker → · Palette generator →