#3333A3#3333A3

#3333A3 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 40.0% C 0.175 H 275.1°. Best body text is #FFFFFF at 9.80:1 contrast (WCAG AA passes).

Color values

HEX	#3333A3
RGB	rgb(51, 51, 163)
HSL	hsl(240, 52%, 42%)
HSV	hsv(240, 69%, 64%)
CMYK	cmyk(68.7%, 68.7%, 0%, 36.1%)
CIE-LAB	lab(28.68, 36.63, -60.31)
CIE-LCH	lch(28.68, 70.56, 301.27°)
OKLab	oklab(40.04% 0.0155 -0.1742)
OKLCH	oklch(40.04% 0.175 275.1)
XYZ	xyz(9.1577, 5.7150, 35.2637)
Luminance	0.0572 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3333A3 #A3A333

analogous

#336BA3 #3333A3 #6B33A3

triadic

#3333A3 #A33333 #33A333

tetradic

#3333A3 #A3336B #A3A333 #33A36B

square

#3333A3 #A3336B #A3A333 #33A36B

split-complementary

#3333A3 #A36B33 #6BA333

monochromatic

#161646 #242474 #3333A3 #4C4CC7 #7B7BD6

Accessibility & contrast

On white

9.80

#3333A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#3333A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3333A3

9.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3333A3	#FFFFFF	#000000	##FFFFFF
##3333A3	1.00	9.80	2.14	9.80
#FFFFFF	9.80	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049A6

Deuteranopia (green-blind)

#003EA1

Tritanopia (blue-blind)

#005167

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3333a3;
/* rgb */ color: rgb(51, 51, 163);
/* oklch */ color: oklch(40.0% 0.175 275.1);

Tailwind

colors: {
  custom: {
    50: '#7a6bbf',
    500: '#3333a3',
    950: '#000000',
  },
}

SCSS

$custom: #3333a3;
$custom-light: #7a6bbf;
$custom-dark: #000000;

JSON

{
  "hex": "#3333a3",
  "rgb": {
    "r": 51,
    "g": 51,
    "b": 163
  },
  "hsl": {
    "h": 240,
    "s": 52.336,
    "l": 41.961
  },
  "oklch": {
    "l": 0.40044,
    "c": 0.17487,
    "h": 275.1
  },
  "luminance": 0.05716
}

Semantic roles & 50–950 ramp

primary

#3333A3

secondary

#BEBE73

accent

#DC4CDC

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #3333A3

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

Preview Lab → · Contrast checker → · Palette generator →