#33399D#33399D

#33399D is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.5% C 0.160 H 274.1°. Best body text is #FFFFFF at 9.49:1 contrast (WCAG AA passes).

Color values

HEX	#33399D
RGB	rgb(51, 57, 157)
HSL	hsl(237, 51%, 41%)
HSV	hsv(237, 68%, 62%)
CMYK	cmyk(67.5%, 63.7%, 0%, 38.4%)
CIE-LAB	lab(29.57, 30.72, -55.21)
CIE-LCH	lch(29.57, 63.19, 299.09°)
OKLab	oklab(40.53% 0.0115 -0.1592)
OKLCH	oklch(40.53% 0.16 274.1)
XYZ	xyz(8.9122, 6.0636, 32.5925)
Luminance	0.0606 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#33399D #9D9733

analogous

#336E9D #33399D #62339D

triadic

#33399D #9D3339 #399D33

tetradic

#33399D #9D336E #9D9733 #339D62

square

#33399D #9D336E #9D9733 #339D62

split-complementary

#33399D #9D6233 #6E9D33

monochromatic

#151741 #24286F #33399D #4950C4 #777DD3

Accessibility & contrast

On white

9.49

#33399D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#33399D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #33399D

9.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##33399D	#FFFFFF	#000000	##FFFFFF
##33399D	1.00	9.49	2.21	9.49
#FFFFFF	9.49	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA0

Deuteranopia (green-blind)

#00419B

Tritanopia (blue-blind)

#005265

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #33399d;
/* rgb */ color: rgb(51, 57, 157);
/* oklch */ color: oklch(40.5% 0.160 274.1);

Tailwind

colors: {
  custom: {
    50: '#786fbb',
    500: '#33399d',
    950: '#000000',
  },
}

SCSS

$custom: #33399d;
$custom-light: #786fbb;
$custom-dark: #000000;

JSON

{
  "hex": "#33399d",
  "rgb": {
    "r": 51,
    "g": 57,
    "b": 157
  },
  "hsl": {
    "h": 236.604,
    "s": 50.962,
    "l": 40.784
  },
  "oklch": {
    "l": 0.40528,
    "c": 0.15965,
    "h": 274.1
  },
  "luminance": 0.06064
}

Semantic roles & 50–950 ramp

primary

#33399D

secondary

#BBB770

accent

#D24DDA

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #33399D

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

Preview Lab → · Contrast checker → · Palette generator →