#3859CF#3859CF

#3859CF is a mid, vivid blue. Relative luminance 0.125; OKLCH L 51.1% C 0.186 H 267.4°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#3859CF
RGB	rgb(56, 89, 207)
HSL	hsl(227, 61%, 52%)
HSV	hsv(227, 73%, 81%)
CMYK	cmyk(72.9%, 57%, 0%, 18.8%)
CIE-LAB	lab(41.98, 28.78, -64.51)
CIE-LCH	lch(41.98, 70.64, 294.05°)
OKLab	oklab(51.07% -0.0083 -0.186)
OKLCH	oklch(51.07% 0.186 267.4)
XYZ	xyz(16.4618, 12.4888, 60.5624)
Luminance	0.1249 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3859CF #CFAE38

analogous

#38A5CF #3859CF #6238CF

triadic

#3859CF #CF3859 #59CF38

tetradic

#3859CF #CF38A5 #CFAE38 #38CF62

square

#3859CF #CF38A5 #CFAE38 #38CF62

split-complementary

#3859CF #CF6238 #A5CF38

monochromatic

#1B2E71 #2742A3 #3859CF #6982DB #9BABE7

Accessibility & contrast

On white

6.00

#3859CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#3859CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3859CF

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3859CF	#FFFFFF	#000000	##FFFFFF
##3859CF	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AD3

Deuteranopia (green-blind)

#005CCD

Tritanopia (blue-blind)

#00768B

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #3859cf;
/* rgb */ color: rgb(56, 89, 207);
/* oklch */ color: oklch(51.1% 0.186 267.4);

Tailwind

colors: {
  custom: {
    50: '#8387df',
    500: '#3859cf',
    950: '#000000',
  },
}

SCSS

$custom: #3859cf;
$custom-light: #8387df;
$custom-dark: #000000;

JSON

{
  "hex": "#3859cf",
  "rgb": {
    "r": 56,
    "g": 89,
    "b": 207
  },
  "hsl": {
    "h": 226.887,
    "s": 61.134,
    "l": 51.569
  },
  "oklch": {
    "l": 0.51065,
    "c": 0.18624,
    "h": 267.4
  },
  "luminance": 0.12491
}

Semantic roles & 50–950 ramp

primary

#3859CF

secondary

#D3C490

accent

#C144E4

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3859CF

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

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