#3633AA#3633AA

#3633AA is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.9% C 0.183 H 275.7°. Best body text is #FFFFFF at 9.50:1 contrast (WCAG AA passes).

Color values

HEX	#3633AA
RGB	rgb(54, 51, 170)
HSL	hsl(242, 54%, 43%)
HSV	hsv(242, 70%, 67%)
CMYK	cmyk(68.2%, 70%, 0%, 33.3%)
CIE-LAB	lab(29.55, 39.39, -63.10)
CIE-LCH	lch(29.55, 74.39, 301.98°)
OKLab	oklab(40.92% 0.0183 -0.1823)
OKLCH	oklch(40.92% 0.183 275.7)
XYZ	xyz(9.9585, 6.0533, 38.6660)
Luminance	0.0605 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.92

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3633AA #A7AA33

analogous

#336BAA #3633AA #7133AA

triadic

#3633AA #AA3633 #33AA36

tetradic

#3633AA #AA336B #A7AA33 #33AA71

square

#3633AA #AA336B #A7AA33 #33AA71

split-complementary

#3633AA #AA7133 #6BAA33

monochromatic

#18174C #27257B #3633AA #5350CA #817FD9

Accessibility & contrast

On white

9.50

#3633AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#3633AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3633AA

9.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3633AA	#FFFFFF	#000000	##FFFFFF
##3633AA	1.00	9.50	2.21	9.50
#FFFFFF	9.50	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BAE

Deuteranopia (green-blind)

#0040A8

Tritanopia (blue-blind)

#00536A

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3633aa;
/* rgb */ color: rgb(54, 51, 170);
/* oklch */ color: oklch(40.9% 0.183 275.7);

Tailwind

colors: {
  custom: {
    50: '#7d6cc4',
    500: '#3633aa',
    950: '#000000',
  },
}

SCSS

$custom: #3633aa;
$custom-light: #7d6cc4;
$custom-dark: #000000;

JSON

{
  "hex": "#3633aa",
  "rgb": {
    "r": 54,
    "g": 51,
    "b": 170
  },
  "hsl": {
    "h": 241.513,
    "s": 53.846,
    "l": 43.333
  },
  "oklch": {
    "l": 0.40922,
    "c": 0.18319,
    "h": 275.7
  },
  "luminance": 0.06054
}

Semantic roles & 50–950 ramp

primary

#3633AA

secondary

#C0C277

accent

#DD4BDA

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3633AA

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

Preview Lab → · Contrast checker → · Palette generator →