#3633A5#3633A5

#3633A5 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.4% C 0.177 H 276.2°. Best body text is #FFFFFF at 9.66:1 contrast (WCAG AA passes).

Color values

HEX	#3633A5
RGB	rgb(54, 51, 165)
HSL	hsl(242, 53%, 42%)
HSV	hsv(242, 69%, 65%)
CMYK	cmyk(67.3%, 69.1%, 0%, 35.3%)
CIE-LAB	lab(29.08, 37.70, -60.86)
CIE-LCH	lch(29.08, 71.59, 301.78°)
OKLab	oklab(40.44% 0.019 -0.1757)
OKLCH	oklch(40.44% 0.177 276.2)
XYZ	xyz(9.4945, 5.8677, 36.2222)
Luminance	0.0587 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3633A5 #A2A533

analogous

#3369A5 #3633A5 #6F33A5

triadic

#3633A5 #A53633 #33A536

tetradic

#3633A5 #A53369 #A2A533 #33A56F

square

#3633A5 #A53369 #A2A533 #33A56F

split-complementary

#3633A5 #A56F33 #69A533

monochromatic

#171648 #272576 #3633A5 #504DC8 #7E7CD6

Accessibility & contrast

On white

9.66

#3633A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#3633A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3633A5

9.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3633A5	#FFFFFF	#000000	##FFFFFF
##3633A5	1.00	9.66	2.17	9.66
#FFFFFF	9.66	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA8

Deuteranopia (green-blind)

#003FA3

Tritanopia (blue-blind)

#005268

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #3633a5;
/* rgb */ color: rgb(54, 51, 165);
/* oklch */ color: oklch(40.4% 0.177 276.2);

Tailwind

colors: {
  custom: {
    50: '#7c6bc1',
    500: '#3633a5',
    950: '#000000',
  },
}

SCSS

$custom: #3633a5;
$custom-light: #7c6bc1;
$custom-dark: #000000;

JSON

{
  "hex": "#3633a5",
  "rgb": {
    "r": 54,
    "g": 51,
    "b": 165
  },
  "hsl": {
    "h": 241.579,
    "s": 52.778,
    "l": 42.353
  },
  "oklch": {
    "l": 0.4044,
    "c": 0.17674,
    "h": 276.2
  },
  "luminance": 0.05869
}

Semantic roles & 50–950 ramp

primary

#3633A5

secondary

#BDBF75

accent

#DC4CD8

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #3633A5

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

Preview Lab → · Contrast checker → · Palette generator →