#333366#333366

#333366 is a dark, moderate blue. Relative luminance 0.040; OKLCH L 34.9% C 0.087 H 280.9°. Best body text is #FFFFFF at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#333366
RGB	rgb(51, 51, 102)
HSL	hsl(240, 33%, 30%)
HSV	hsv(240, 50%, 40%)
CMYK	cmyk(50%, 50%, 0%, 60%)
CIE-LAB	lab(23.77, 15.25, -30.12)
CIE-LCH	lch(23.77, 33.76, 296.85°)
OKLab	oklab(34.88% 0.0165 -0.0855)
OKLCH	oklch(34.88% 0.087 280.9)
XYZ	xyz(4.9466, 4.0305, 13.0851)
Luminance	0.0403 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333366 #666633

analogous

#334C66 #333366 #4C3366

triadic

#333366 #663333 #336633

tetradic

#333366 #66334D #666633 #33664D

square

#333366 #66334D #666633 #33664D

split-complementary

#333366 #664D33 #4D6633

monochromatic

#0A0A14 #1F1F3D #333366 #47478F #6363B1

Accessibility & contrast

On white

11.63

#333366 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#333366 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333366

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333366	#FFFFFF	#000000	##FFFFFF
##333366	1.00	11.63	1.81	11.63
#FFFFFF	11.63	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E3A68

Deuteranopia (green-blind)

#1A3765

Tritanopia (blue-blind)

#213E47

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #333366;
/* rgb */ color: rgb(51, 51, 102);
/* oklch */ color: oklch(34.9% 0.087 280.9);

Tailwind

colors: {
  custom: {
    50: '#6e6a92',
    500: '#333366',
    950: '#000000',
  },
}

SCSS

$custom: #333366;
$custom-light: #6e6a92;
$custom-dark: #000000;

JSON

{
  "hex": "#333366",
  "rgb": {
    "r": 51,
    "g": 51,
    "b": 102
  },
  "hsl": {
    "h": 240,
    "s": 33.333,
    "l": 30
  },
  "oklch": {
    "l": 0.34883,
    "c": 0.0871,
    "h": 280.9
  },
  "luminance": 0.04031
}

Semantic roles & 50–950 ramp

primary

#333366

secondary

#97975E

accent

#C95EC9

background

#F6F6F9

surface

#ECEBF1

border

#C7C6CB

text

#07060D

muted

#7A7A7E

Preview Lab

Preview with #333366

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

Preview Lab → · Contrast checker → · Palette generator →