#3840AF#3840AF

#3840AF is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.7% C 0.174 H 273.5°. Best body text is #FFFFFF at 8.33:1 contrast (WCAG AA passes).

Color values

HEX	#3840AF
RGB	rgb(56, 64, 175)
HSL	hsl(236, 52%, 45%)
HSV	hsv(236, 68%, 69%)
CMYK	cmyk(68%, 63.4%, 0%, 31.4%)
CIE-LAB	lab(33.14, 33.32, -60.20)
CIE-LCH	lch(33.14, 68.81, 298.96°)
OKLab	oklab(43.71% 0.0107 -0.1737)
OKLCH	oklch(43.71% 0.174 273.5)
XYZ	xyz(11.1996, 7.6017, 41.4262)
Luminance	0.0760 (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

#3840AF #AFA738

analogous

#387CAF #3840AF #6B38AF

triadic

#3840AF #AF3840 #40AF38

tetradic

#3840AF #AF387C #AFA738 #38AF6B

square

#3840AF #AF387C #AFA738 #38AF6B

split-complementary

#3840AF #AF6B38 #7CAF38

monochromatic

#1A1E52 #292F81 #3840AF #5A62CA #888ED9

Accessibility & contrast

On white

8.33

#3840AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#3840AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3840AF

8.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3840AF	#FFFFFF	#000000	##FFFFFF
##3840AF	1.00	8.33	2.52	8.33
#FFFFFF	8.33	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B3

Deuteranopia (green-blind)

#0049AD

Tritanopia (blue-blind)

#005C71

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3840af;
/* rgb */ color: rgb(56, 64, 175);
/* oklch */ color: oklch(43.7% 0.174 273.5);

Tailwind

colors: {
  custom: {
    50: '#7e75c8',
    500: '#3840af',
    950: '#000000',
  },
}

SCSS

$custom: #3840af;
$custom-light: #7e75c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3840af",
  "rgb": {
    "r": 56,
    "g": 64,
    "b": 175
  },
  "hsl": {
    "h": 235.966,
    "s": 51.515,
    "l": 45.294
  },
  "oklch": {
    "l": 0.43705,
    "c": 0.174,
    "h": 273.5
  },
  "luminance": 0.07603
}

Semantic roles & 50–950 ramp

primary

#3840AF

secondary

#C3BF80

accent

#D14DDB

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3840AF

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

Preview Lab → · Contrast checker → · Palette generator →