#3333A5#3333A5

#3333A5 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.2% C 0.177 H 274.9°. Best body text is #FFFFFF at 9.73:1 contrast (WCAG AA passes).

Color values

HEX	#3333A5
RGB	rgb(51, 51, 165)
HSL	hsl(240, 53%, 42%)
HSV	hsv(240, 69%, 65%)
CMYK	cmyk(69.1%, 69.1%, 0%, 35.3%)
CIE-LAB	lab(28.87, 37.32, -61.21)
CIE-LCH	lch(28.87, 71.69, 301.37°)
OKLab	oklab(40.24% 0.0153 -0.1768)
OKLCH	oklch(40.24% 0.177 274.9)
XYZ	xyz(9.3384, 5.7872, 36.2149)
Luminance	0.0579 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3333A5 #A5A533

analogous

#336CA5 #3333A5 #6C33A5

triadic

#3333A5 #A53333 #33A533

tetradic

#3333A5 #A5336C #A5A533 #33A56C

square

#3333A5 #A5336C #A5A533 #33A56C

split-complementary

#3333A5 #A56C33 #6CA533

monochromatic

#161648 #252576 #3333A5 #4D4DC8 #7C7CD6

Accessibility & contrast

On white

9.73

#3333A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#3333A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3333A5

9.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3333A5	#FFFFFF	#000000	##FFFFFF
##3333A5	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)

#0049A8

Deuteranopia (green-blind)

#003FA3

Tritanopia (blue-blind)

#005268

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3333a5;
/* rgb */ color: rgb(51, 51, 165);
/* oklch */ color: oklch(40.2% 0.177 274.9);

Tailwind

colors: {
  custom: {
    50: '#7b6bc1',
    500: '#3333a5',
    950: '#000000',
  },
}

SCSS

$custom: #3333a5;
$custom-light: #7b6bc1;
$custom-dark: #000000;

JSON

{
  "hex": "#3333a5",
  "rgb": {
    "r": 51,
    "g": 51,
    "b": 165
  },
  "hsl": {
    "h": 240,
    "s": 52.778,
    "l": 42.353
  },
  "oklch": {
    "l": 0.40237,
    "c": 0.17748,
    "h": 274.9
  },
  "luminance": 0.05788
}

Semantic roles & 50–950 ramp

primary

#3333A5

secondary

#BFBF75

accent

#DC4CDC

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #3333A5

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

Preview Lab → · Contrast checker → · Palette generator →