#3864AC#3864AC

#3864AC is a mid, vivid blue. Relative luminance 0.129; OKLCH L 50.8% C 0.125 H 259.8°. Best body text is #FFFFFF at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#3864AC
RGB	rgb(56, 100, 172)
HSL	hsl(217, 51%, 45%)
HSV	hsv(217, 67%, 67%)
CMYK	cmyk(67.4%, 41.9%, 0%, 32.5%)
CIE-LAB	lab(42.66, 8.87, -43.05)
CIE-LCH	lch(42.66, 43.95, 281.65°)
OKLab	oklab(50.84% -0.0222 -0.1228)
OKLCH	oklch(50.84% 0.125 259.8)
XYZ	xyz(13.6318, 12.9323, 40.7995)
Luminance	0.1293 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3864AC #AC8038

analogous

#389EAC #3864AC #4638AC

triadic

#3864AC #AC3864 #64AC38

tetradic

#3864AC #AC389E #AC8038 #38AC46

square

#3864AC #AC389E #AC8038 #38AC46

split-complementary

#3864AC #AC4638 #9EAC38

monochromatic

#1A2E50 #29497E #3864AC #5883C9 #87A5D8

Accessibility & contrast

On white

5.85

#3864AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#3864AC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3864AC

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3864AC	#FFFFFF	#000000	##FFFFFF
##3864AC	1.00	5.85	3.59	5.85
#FFFFFF	5.85	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#436BAF

Deuteranopia (green-blind)

#3160AB

Tritanopia (blue-blind)

#00757F

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3864ac;
/* rgb */ color: rgb(56, 100, 172);
/* oklch */ color: oklch(50.8% 0.125 259.8);

Tailwind

colors: {
  custom: {
    50: '#7b8fc5',
    500: '#3864ac',
    950: '#000000',
  },
}

SCSS

$custom: #3864ac;
$custom-light: #7b8fc5;
$custom-dark: #000000;

JSON

{
  "hex": "#3864ac",
  "rgb": {
    "r": 56,
    "g": 100,
    "b": 172
  },
  "hsl": {
    "h": 217.241,
    "s": 50.877,
    "l": 44.706
  },
  "oklch": {
    "l": 0.50837,
    "c": 0.12476,
    "h": 259.8
  },
  "luminance": 0.12934
}

Semantic roles & 50–950 ramp

primary

#3864AC

secondary

#C2A87E

accent

#A54DDA

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #3864AC

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

Preview Lab → · Contrast checker → · Palette generator →