#3865BC#3865BC

#3865BC is a mid, vivid blue. Relative luminance 0.138; OKLCH L 52.1% C 0.146 H 262.1°. Best body text is #FFFFFF at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#3865BC
RGB	rgb(56, 101, 188)
HSL	hsl(220, 54%, 48%)
HSV	hsv(220, 70%, 74%)
CMYK	cmyk(70.2%, 46.3%, 0%, 26.3%)
CIE-LAB	lab(43.91, 14.10, -50.40)
CIE-LCH	lch(43.91, 52.34, 285.62°)
OKLab	oklab(52.11% -0.0202 -0.1444)
OKLCH	oklch(52.11% 0.146 262.1)
XYZ	xyz(15.3584, 13.7774, 49.4171)
Luminance	0.1378 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3865BC #BC8F38

analogous

#38A7BC #3865BC #4D38BC

triadic

#3865BC #BC3865 #65BC38

tetradic

#3865BC #BC38A7 #BC8F38 #38BC4D

square

#3865BC #BC38A7 #BC8F38 #38BC4D

split-complementary

#3865BC #BC4D38 #A7BC38

monochromatic

#1C325E #2A4C8D #3865BC #6187D0 #90ABDE

Accessibility & contrast

On white

5.59

#3865BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#3865BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3865BC

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3865BC	#FFFFFF	#000000	##FFFFFF
##3865BC	1.00	5.59	3.76	5.59
#FFFFFF	5.59	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#386EBF

Deuteranopia (green-blind)

#1C62BA

Tritanopia (blue-blind)

#007987

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3865bc;
/* rgb */ color: rgb(56, 101, 188);
/* oklch */ color: oklch(52.1% 0.146 262.1);

Tailwind

colors: {
  custom: {
    50: '#7e90d1',
    500: '#3865bc',
    950: '#000000',
  },
}

SCSS

$custom: #3865bc;
$custom-light: #7e90d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3865bc",
  "rgb": {
    "r": 56,
    "g": 101,
    "b": 188
  },
  "hsl": {
    "h": 219.545,
    "s": 54.098,
    "l": 47.843
  },
  "oklch": {
    "l": 0.52113,
    "c": 0.14576,
    "h": 262.1
  },
  "luminance": 0.13779
}

Semantic roles & 50–950 ramp

primary

#3865BC

secondary

#C9B287

accent

#AB4ADD

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3865BC

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

Preview Lab → · Contrast checker → · Palette generator →