#3643AF#3643AF

#3643AF is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.1% C 0.171 H 272.1°. Best body text is #FFFFFF at 8.14:1 contrast (WCAG AA passes).

Color values

HEX	#3643AF
RGB	rgb(54, 67, 175)
HSL	hsl(234, 53%, 45%)
HSV	hsv(234, 69%, 69%)
CMYK	cmyk(69.1%, 61.7%, 0%, 31.4%)
CIE-LAB	lab(33.76, 31.12, -59.19)
CIE-LCH	lch(33.76, 66.87, 297.73°)
OKLab	oklab(44.13% 0.0062 -0.1708)
OKLCH	oklch(44.13% 0.171 272.1)
XYZ	xyz(11.2637, 7.8927, 41.4790)
Luminance	0.0789 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3643AF #AFA236

analogous

#367FAF #3643AF #6636AF

triadic

#3643AF #AF3643 #43AF36

tetradic

#3643AF #AF367F #AFA236 #36AF66

square

#3643AF #AF367F #AFA236 #36AF66

split-complementary

#3643AF #AF6636 #7FAF36

monochromatic

#191F51 #283180 #3643AF #5764CB #868FDA

Accessibility & contrast

On white

8.14

#3643AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#3643AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3643AF

8.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3643AF	#FFFFFF	#000000	##FFFFFF
##3643AF	1.00	8.14	2.58	8.14
#FFFFFF	8.14	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B3

Deuteranopia (green-blind)

#004AAD

Tritanopia (blue-blind)

#005E72

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3643af;
/* rgb */ color: rgb(54, 67, 175);
/* oklch */ color: oklch(44.1% 0.171 272.1);

Tailwind

colors: {
  custom: {
    50: '#7d77c8',
    500: '#3643af',
    950: '#000000',
  },
}

SCSS

$custom: #3643af;
$custom-light: #7d77c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3643af",
  "rgb": {
    "r": 54,
    "g": 67,
    "b": 175
  },
  "hsl": {
    "h": 233.554,
    "s": 52.838,
    "l": 44.902
  },
  "oklch": {
    "l": 0.44129,
    "c": 0.17086,
    "h": 272.1
  },
  "luminance": 0.07894
}

Semantic roles & 50–950 ramp

primary

#3643AF

secondary

#C3BC7D

accent

#CD4CDC

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3643AF

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

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