#3333A6#3333A6

#3333A6 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.3% C 0.179 H 274.9°. Best body text is #FFFFFF at 9.70:1 contrast (WCAG AA passes).

Color values

HEX	#3333A6
RGB	rgb(51, 51, 166)
HSL	hsl(240, 53%, 43%)
HSV	hsv(240, 69%, 65%)
CMYK	cmyk(69.3%, 69.3%, 0%, 34.9%)
CIE-LAB	lab(28.96, 37.66, -61.66)
CIE-LCH	lch(28.96, 72.25, 301.42°)
OKLab	oklab(40.33% 0.0151 -0.1781)
OKLCH	oklch(40.33% 0.179 274.9)
XYZ	xyz(9.4297, 5.8238, 36.6962)
Luminance	0.0583 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3333A6 #A6A633

analogous

#336CA6 #3333A6 #6C33A6

triadic

#3333A6 #A63333 #33A633

tetradic

#3333A6 #A6336C #A6A633 #33A66C

square

#3333A6 #A6336C #A6A633 #33A66C

split-complementary

#3333A6 #A66C33 #6CA633

monochromatic

#161648 #252577 #3333A6 #4E4EC9 #7C7CD7

Accessibility & contrast

On white

9.70

#3333A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#3333A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3333A6

9.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3333A6	#FFFFFF	#000000	##FFFFFF
##3333A6	1.00	9.70	2.17	9.70
#FFFFFF	9.70	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AAA

Deuteranopia (green-blind)

#003FA4

Tritanopia (blue-blind)

#005268

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3333a6;
/* rgb */ color: rgb(51, 51, 166);
/* oklch */ color: oklch(40.3% 0.179 274.9);

Tailwind

colors: {
  custom: {
    50: '#7b6bc1',
    500: '#3333a6',
    950: '#000000',
  },
}

SCSS

$custom: #3333a6;
$custom-light: #7b6bc1;
$custom-dark: #000000;

JSON

{
  "hex": "#3333a6",
  "rgb": {
    "r": 51,
    "g": 51,
    "b": 166
  },
  "hsl": {
    "h": 240,
    "s": 52.995,
    "l": 42.549
  },
  "oklch": {
    "l": 0.40334,
    "c": 0.17877,
    "h": 274.9
  },
  "luminance": 0.05825
}

Semantic roles & 50–950 ramp

primary

#3333A6

secondary

#C0C075

accent

#DC4BDC

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #3333A6

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

Preview Lab → · Contrast checker → · Palette generator →