#333899#333899

#333899 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.0% C 0.155 H 274.6°. Best body text is #FFFFFF at 9.69:1 contrast (WCAG AA passes).

Color values

HEX	#333899
RGB	rgb(51, 56, 153)
HSL	hsl(237, 50%, 40%)
HSV	hsv(237, 67%, 60%)
CMYK	cmyk(66.7%, 63.4%, 0%, 40%)
CIE-LAB	lab(28.98, 29.94, -53.74)
CIE-LCH	lch(28.98, 61.52, 299.13°)
OKLab	oklab(39.99% 0.0126 -0.1549)
OKLCH	oklch(39.99% 0.155 274.6)
XYZ	xyz(8.5273, 5.8313, 30.8070)
Luminance	0.0583 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333899 #999433

analogous

#336B99 #333899 #613399

triadic

#333899 #993338 #389933

tetradic

#333899 #99336B #999433 #339961

square

#333899 #99336B #999433 #339961

split-complementary

#333899 #996133 #6B9933

monochromatic

#14163D #24276B #333899 #474DC2 #757AD1

Accessibility & contrast

On white

9.69

#333899 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#333899 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333899

9.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333899	#FFFFFF	#000000	##FFFFFF
##333899	1.00	9.69	2.17	9.69
#FFFFFF	9.69	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00499C

Deuteranopia (green-blind)

#004097

Tritanopia (blue-blind)

#005063

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #333899;
/* rgb */ color: rgb(51, 56, 153);
/* oklch */ color: oklch(40.0% 0.155 274.6);

Tailwind

colors: {
  custom: {
    50: '#776eb8',
    500: '#333899',
    950: '#000000',
  },
}

SCSS

$custom: #333899;
$custom-light: #776eb8;
$custom-dark: #000000;

JSON

{
  "hex": "#333899",
  "rgb": {
    "r": 51,
    "g": 56,
    "b": 153
  },
  "hsl": {
    "h": 237.059,
    "s": 50,
    "l": 40
  },
  "oklch": {
    "l": 0.39989,
    "c": 0.15542,
    "h": 274.6
  },
  "luminance": 0.05832
}

Semantic roles & 50–950 ramp

primary

#333899

secondary

#B9B66E

accent

#D34EDA

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0711

muted

#7C7A80

Preview Lab

Preview with #333899

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

Preview Lab → · Contrast checker → · Palette generator →