#3633A3#3633A3

#3633A3 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.2% C 0.174 H 276.4°. Best body text is #FFFFFF at 9.73:1 contrast (WCAG AA passes).

Color values

HEX	#3633A3
RGB	rgb(54, 51, 163)
HSL	hsl(242, 52%, 42%)
HSV	hsv(242, 69%, 64%)
CMYK	cmyk(66.9%, 68.7%, 0%, 36.1%)
CIE-LAB	lab(28.89, 37.02, -59.96)
CIE-LCH	lch(28.89, 70.47, 301.69°)
OKLab	oklab(40.25% 0.0193 -0.1731)
OKLCH	oklch(40.25% 0.174 276.4)
XYZ	xyz(9.3138, 5.7955, 35.2710)
Luminance	0.0580 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3633A3 #A0A333

analogous

#3368A3 #3633A3 #6E33A3

triadic

#3633A3 #A33633 #33A336

tetradic

#3633A3 #A33368 #A0A333 #33A36E

square

#3633A3 #A33368 #A0A333 #33A36E

split-complementary

#3633A3 #A36E33 #68A333

monochromatic

#171646 #272474 #3633A3 #4F4CC7 #7D7BD6

Accessibility & contrast

On white

9.73

#3633A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#3633A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3633A3

9.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3633A3	#FFFFFF	#000000	##FFFFFF
##3633A3	1.00	9.73	2.16	9.73
#FFFFFF	9.73	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049A6

Deuteranopia (green-blind)

#003FA1

Tritanopia (blue-blind)

#005167

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3633a3;
/* rgb */ color: rgb(54, 51, 163);
/* oklch */ color: oklch(40.2% 0.174 276.4);

Tailwind

colors: {
  custom: {
    50: '#7b6bbf',
    500: '#3633a3',
    950: '#000000',
  },
}

SCSS

$custom: #3633a3;
$custom-light: #7b6bbf;
$custom-dark: #000000;

JSON

{
  "hex": "#3633a3",
  "rgb": {
    "r": 54,
    "g": 51,
    "b": 163
  },
  "hsl": {
    "h": 241.607,
    "s": 52.336,
    "l": 41.961
  },
  "oklch": {
    "l": 0.40249,
    "c": 0.17415,
    "h": 276.4
  },
  "luminance": 0.05796
}

Semantic roles & 50–950 ramp

primary

#3633A3

secondary

#BCBE73

accent

#DC4CD8

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #3633A3

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

Preview Lab → · Contrast checker → · Palette generator →