#3843B7#3843B7

#3843B7 is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.9% C 0.181 H 272.5°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#3843B7
RGB	rgb(56, 67, 183)
HSL	hsl(235, 53%, 47%)
HSV	hsv(235, 69%, 72%)
CMYK	cmyk(69.4%, 63.4%, 0%, 28.2%)
CIE-LAB	lab(34.54, 34.23, -62.65)
CIE-LCH	lch(34.54, 71.39, 298.65°)
OKLab	oklab(44.95% 0.008 -0.1808)
OKLCH	oklch(44.95% 0.181 272.5)
XYZ	xyz(12.1824, 8.2728, 45.7454)
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

#3843B7 #B7AC38

analogous

#3883B7 #3843B7 #6D38B7

triadic

#3843B7 #B73843 #43B738

tetradic

#3843B7 #B73883 #B7AC38 #38B76D

square

#3843B7 #B73883 #B7AC38 #38B76D

split-complementary

#3843B7 #B76D38 #83B738

monochromatic

#1B2159 #2A3288 #3843B7 #5E68CE #8D94DC

Accessibility & contrast

On white

7.91

#3843B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#3843B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3843B7

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3843B7	#FFFFFF	#000000	##FFFFFF
##3843B7	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)

#0057BB

Deuteranopia (green-blind)

#004BB5

Tritanopia (blue-blind)

#006177

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3843b7;
/* rgb */ color: rgb(56, 67, 183);
/* oklch */ color: oklch(44.9% 0.181 272.5);

Tailwind

colors: {
  custom: {
    50: '#7f77ce',
    500: '#3843b7',
    950: '#000000',
  },
}

SCSS

$custom: #3843b7;
$custom-light: #7f77ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3843b7",
  "rgb": {
    "r": 56,
    "g": 67,
    "b": 183
  },
  "hsl": {
    "h": 234.803,
    "s": 53.138,
    "l": 46.863
  },
  "oklch": {
    "l": 0.44947,
    "c": 0.18101,
    "h": 272.5
  },
  "luminance": 0.08274
}

Semantic roles & 50–950 ramp

primary

#3843B7

secondary

#C7C184

accent

#D04BDD

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #3843B7

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

Preview Lab → · Contrast checker → · Palette generator →