#3843AB#3843AB

#3843AB is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.9% C 0.165 H 272.9°. Best body text is #FFFFFF at 8.21:1 contrast (WCAG AA passes).

Color values

HEX	#3843AB
RGB	rgb(56, 67, 171)
HSL	hsl(234, 51%, 45%)
HSV	hsv(234, 67%, 67%)
CMYK	cmyk(67.3%, 60.8%, 0%, 32.9%)
CIE-LAB	lab(33.55, 29.98, -57.14)
CIE-LCH	lch(33.55, 64.53, 297.68°)
OKLab	oklab(43.91% 0.0085 -0.1647)
OKLCH	oklch(43.91% 0.165 272.9)
XYZ	xyz(10.9863, 7.7943, 39.4457)
Luminance	0.0780 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.27

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3843AB #ABA038

analogous

#387DAB #3843AB #6738AB

triadic

#3843AB #AB3843 #43AB38

tetradic

#3843AB #AB387D #ABA038 #38AB67

square

#3843AB #AB387D #ABA038 #38AB67

split-complementary

#3843AB #AB6738 #7DAB38

monochromatic

#1A1F4F #29317D #3843AB #5863C8 #868ED7

Accessibility & contrast

On white

8.21

#3843AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#3843AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3843AB

8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3843AB	#FFFFFF	#000000	##FFFFFF
##3843AB	1.00	8.21	2.56	8.21
#FFFFFF	8.21	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054AE

Deuteranopia (green-blind)

#004AA9

Tritanopia (blue-blind)

#005D70

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3843ab;
/* rgb */ color: rgb(56, 67, 171);
/* oklch */ color: oklch(43.9% 0.165 272.9);

Tailwind

colors: {
  custom: {
    50: '#7d77c5',
    500: '#3843ab',
    950: '#000000',
  },
}

SCSS

$custom: #3843ab;
$custom-light: #7d77c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3843ab",
  "rgb": {
    "r": 56,
    "g": 67,
    "b": 171
  },
  "hsl": {
    "h": 234.261,
    "s": 50.661,
    "l": 44.51
  },
  "oklch": {
    "l": 0.43905,
    "c": 0.16489,
    "h": 272.9
  },
  "luminance": 0.07795
}

Semantic roles & 50–950 ramp

primary

#3843AB

secondary

#C1BB7D

accent

#CD4EDA

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3843AB

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

Preview Lab → · Contrast checker → · Palette generator →