#3859BB#3859BB

#3859BB is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.5% C 0.159 H 266.5°. Best body text is #FFFFFF at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#3859BB
RGB	rgb(56, 89, 187)
HSL	hsl(225, 54%, 48%)
HSV	hsv(225, 70%, 73%)
CMYK	cmyk(70.1%, 52.4%, 0%, 26.7%)
CIE-LAB	lab(40.53, 21.47, -55.27)
CIE-LCH	lch(40.53, 59.29, 291.23°)
OKLab	oklab(49.51% -0.0096 -0.1589)
OKLCH	oklch(49.51% 0.159 266.5)
XYZ	xyz(14.1698, 11.5719, 48.4909)
Luminance	0.1157 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3859BB #BB9A38

analogous

#389BBB #3859BB #5838BB

triadic

#3859BB #BB3859 #59BB38

tetradic

#3859BB #BB389B #BB9A38 #38BB58

square

#3859BB #BB389B #BB9A38 #38BB58

split-complementary

#3859BB #BB5838 #9BBB38

monochromatic

#1C2C5D #2A438C #3859BB #617DD0 #90A3DE

Accessibility & contrast

On white

6.34

#3859BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#3859BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3859BB

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3859BB	#FFFFFF	#000000	##FFFFFF
##3859BB	1.00	6.34	3.31	6.34
#FFFFFF	6.34	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1866BE

Deuteranopia (green-blind)

#005AB9

Tritanopia (blue-blind)

#007081

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #3859bb;
/* rgb */ color: rgb(56, 89, 187);
/* oklch */ color: oklch(49.5% 0.159 266.5);

Tailwind

colors: {
  custom: {
    50: '#7f87d0',
    500: '#3859bb',
    950: '#000000',
  },
}

SCSS

$custom: #3859bb;
$custom-light: #7f87d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3859bb",
  "rgb": {
    "r": 56,
    "g": 89,
    "b": 187
  },
  "hsl": {
    "h": 224.885,
    "s": 53.909,
    "l": 47.647
  },
  "oklch": {
    "l": 0.4951,
    "c": 0.15917,
    "h": 266.5
  },
  "luminance": 0.11573
}

Semantic roles & 50–950 ramp

primary

#3859BB

secondary

#C8B886

accent

#B84BDD

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #3859BB

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

Preview Lab → · Contrast checker → · Palette generator →