#3840BF#3840BF

#3840BF is a mid, vivid blue. Relative luminance 0.083; OKLCH L 45.2% C 0.195 H 272.8°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#3840BF
RGB	rgb(56, 64, 191)
HSL	hsl(236, 55%, 48%)
HSV	hsv(236, 71%, 75%)
CMYK	cmyk(70.7%, 66.5%, 0%, 25.1%)
CIE-LAB	lab(34.53, 38.90, -67.37)
CIE-LCH	lch(34.53, 77.80, 300.00°)
OKLab	oklab(45.15% 0.0095 -0.1947)
OKLCH	oklch(45.15% 0.195 272.8)
XYZ	xyz(12.8651, 8.2679, 50.1980)
Luminance	0.0827 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3840BF #BFB738

analogous

#3884BF #3840BF #7338BF

triadic

#3840BF #BF3840 #40BF38

tetradic

#3840BF #BF3884 #BFB738 #38BF73

square

#3840BF #BF3884 #BFB738 #38BF73

split-complementary

#3840BF #BF7338 #84BF38

monochromatic

#1C2060 #2A3090 #3840BF #6369D1 #9297DF

Accessibility & contrast

On white

7.91

#3840BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#3840BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3840BF

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3840BF	#FFFFFF	#000000	##FFFFFF
##3840BF	1.00	7.91	2.65	7.91
#FFFFFF	7.91	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058C3

Deuteranopia (green-blind)

#004BBD

Tritanopia (blue-blind)

#00627A

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3840bf;
/* rgb */ color: rgb(56, 64, 191);
/* oklch */ color: oklch(45.2% 0.195 272.8);

Tailwind

colors: {
  custom: {
    50: '#8175d3',
    500: '#3840bf',
    950: '#000000',
  },
}

SCSS

$custom: #3840bf;
$custom-light: #8175d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3840bf",
  "rgb": {
    "r": 56,
    "g": 64,
    "b": 191
  },
  "hsl": {
    "h": 236.444,
    "s": 54.656,
    "l": 48.431
  },
  "oklch": {
    "l": 0.45154,
    "c": 0.19493,
    "h": 272.8
  },
  "luminance": 0.08269
}

Semantic roles & 50–950 ramp

primary

#3840BF

secondary

#CAC689

accent

#D54ADE

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3840BF

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

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