#333F8F#333F8F

#333F8F is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.5% C 0.132 H 272.7°. Best body text is #FFFFFF at 9.34:1 contrast (WCAG AA passes).

Color values

HEX	#333F8F
RGB	rgb(51, 63, 143)
HSL	hsl(232, 47%, 38%)
HSV	hsv(232, 64%, 56%)
CMYK	cmyk(64.3%, 55.9%, 0%, 43.9%)
CIE-LAB	lab(30.01, 21.69, -45.94)
CIE-LCH	lch(30.01, 50.81, 295.27°)
OKLab	oklab(40.5% 0.0061 -0.1319)
OKLCH	oklch(40.5% 0.132 272.7)
XYZ	xyz(8.0990, 6.2413, 26.7592)
Luminance	0.0624 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333F8F #8F8333

analogous

#336D8F #333F8F #55338F

triadic

#333F8F #8F333F #3F8F33

tetradic

#333F8F #8F336D #8F8333 #338F55

square

#333F8F #8F336D #8F8333 #338F55

split-complementary

#333F8F #8F5533 #6D8F33

monochromatic

#131735 #232B62 #333F8F #4353BC #707CCC

Accessibility & contrast

On white

9.34

#333F8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#333F8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333F8F

9.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333F8F	#FFFFFF	#000000	##FFFFFF
##333F8F	1.00	9.34	2.25	9.34
#FFFFFF	9.34	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#044B92

Deuteranopia (green-blind)

#00438D

Tritanopia (blue-blind)

#005260

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #333f8f;
/* rgb */ color: rgb(51, 63, 143);
/* oklch */ color: oklch(40.5% 0.132 272.7);

Tailwind

colors: {
  custom: {
    50: '#7573b0',
    500: '#333f8f',
    950: '#000000',
  },
}

SCSS

$custom: #333f8f;
$custom-light: #7573b0;
$custom-dark: #000000;

JSON

{
  "hex": "#333f8f",
  "rgb": {
    "r": 51,
    "g": 63,
    "b": 143
  },
  "hsl": {
    "h": 232.174,
    "s": 47.423,
    "l": 38.039
  },
  "oklch": {
    "l": 0.40504,
    "c": 0.13206,
    "h": 272.7
  },
  "luminance": 0.06242
}

Semantic roles & 50–950 ramp

primary

#333F8F

secondary

#B4AA6A

accent

#C651D7

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#090811

muted

#7B7B80

Preview Lab

Preview with #333F8F

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

Preview Lab → · Contrast checker → · Palette generator →