#3859CB#3859CB

#3859CB is a mid, vivid blue. Relative luminance 0.123; OKLCH L 50.7% C 0.181 H 267.3°. Best body text is #FFFFFF at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#3859CB
RGB	rgb(56, 89, 203)
HSL	hsl(227, 59%, 51%)
HSV	hsv(227, 72%, 80%)
CMYK	cmyk(72.4%, 56.2%, 0%, 20.4%)
CIE-LAB	lab(41.68, 27.33, -62.69)
CIE-LCH	lch(41.68, 68.39, 293.55°)
OKLab	oklab(50.75% -0.0085 -0.1807)
OKLCH	oklch(50.75% 0.181 267.3)
XYZ	xyz(15.9790, 12.2956, 58.0195)
Luminance	0.1230 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3859CB #CBAA38

analogous

#38A2CB #3859CB #6038CB

triadic

#3859CB #CB3859 #59CB38

tetradic

#3859CB #CB38A2 #CBAA38 #38CB60

square

#3859CB #CB38A2 #CBAA38 #38CB60

split-complementary

#3859CB #CB6038 #A2CB38

monochromatic

#1C2E6C #29439D #3859CB #6981D8 #99AAE4

Accessibility & contrast

On white

6.07

#3859CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#3859CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3859CB

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3859CB	#FFFFFF	#000000	##FFFFFF
##3859CB	1.00	6.07	3.46	6.07
#FFFFFF	6.07	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069CF

Deuteranopia (green-blind)

#005CC9

Tritanopia (blue-blind)

#007589

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3859cb;
/* rgb */ color: rgb(56, 89, 203);
/* oklch */ color: oklch(50.7% 0.181 267.3);

Tailwind

colors: {
  custom: {
    50: '#8287dc',
    500: '#3859cb',
    950: '#000000',
  },
}

SCSS

$custom: #3859cb;
$custom-light: #8287dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3859cb",
  "rgb": {
    "r": 56,
    "g": 89,
    "b": 203
  },
  "hsl": {
    "h": 226.531,
    "s": 58.566,
    "l": 50.784
  },
  "oklch": {
    "l": 0.50745,
    "c": 0.18091,
    "h": 267.3
  },
  "luminance": 0.12297
}

Semantic roles & 50–950 ramp

primary

#3859CB

secondary

#D0C18F

accent

#BF46E2

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3859CB

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

Preview Lab → · Contrast checker → · Palette generator →