#3330B3#3330B3

#3330B3 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 41.2% C 0.198 H 274.3°. Best body text is #FFFFFF at 9.48:1 contrast (WCAG AA passes).

Color values

HEX	#3330B3
RGB	rgb(51, 48, 179)
HSL	hsl(241, 58%, 45%)
HSV	hsv(241, 73%, 70%)
CMYK	cmyk(71.5%, 73.2%, 0%, 29.8%)
CIE-LAB	lab(29.59, 43.82, -68.42)
CIE-LCH	lch(29.59, 81.25, 302.64°)
OKLab	oklab(41.17% 0.0149 -0.1978)
OKLCH	oklch(41.17% 0.198 274.3)
XYZ	xyz(10.5562, 6.0714, 43.2547)
Luminance	0.0607 (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

#3330B3 #B0B330

analogous

#306FB3 #3330B3 #7530B3

triadic

#3330B3 #B33330 #30B333

tetradic

#3330B3 #B3306F #B0B330 #30B375

square

#3330B3 #B3306F #B0B330 #30B375

split-complementary

#3330B3 #B37530 #6FB330

monochromatic

#181652 #252383 #3330B3 #5350D0 #8280DD

Accessibility & contrast

On white

9.48

#3330B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#3330B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3330B3

9.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3330B3	#FFFFFF	#000000	##FFFFFF
##3330B3	1.00	9.48	2.21	9.48
#FFFFFF	9.48	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CB7

Deuteranopia (green-blind)

#0040B1

Tritanopia (blue-blind)

#00556F

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3330b3;
/* rgb */ color: rgb(51, 48, 179);
/* oklch */ color: oklch(41.2% 0.198 274.3);

Tailwind

colors: {
  custom: {
    50: '#7e6acb',
    500: '#3330b3',
    950: '#000000',
  },
}

SCSS

$custom: #3330b3;
$custom-light: #7e6acb;
$custom-dark: #000000;

JSON

{
  "hex": "#3330b3",
  "rgb": {
    "r": 51,
    "g": 48,
    "b": 179
  },
  "hsl": {
    "h": 241.374,
    "s": 57.709,
    "l": 44.51
  },
  "oklch": {
    "l": 0.41168,
    "c": 0.19841,
    "h": 274.3
  },
  "luminance": 0.06072
}

Semantic roles & 50–950 ramp

primary

#3330B3

secondary

#C4C679

accent

#E147DD

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #3330B3

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

Preview Lab → · Contrast checker → · Palette generator →