#333C91#333C91

#333C91 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.1% C 0.139 H 273.8°. Best body text is #FFFFFF at 9.56:1 contrast (WCAG AA passes).

Color values

HEX	#333C91
RGB	rgb(51, 60, 145)
HSL	hsl(234, 48%, 38%)
HSV	hsv(234, 65%, 57%)
CMYK	cmyk(64.8%, 58.6%, 0%, 43.1%)
CIE-LAB	lab(29.36, 24.43, -48.23)
CIE-LCH	lch(29.36, 54.06, 296.86°)
OKLab	oklab(40.06% 0.0091 -0.1387)
OKLCH	oklch(40.06% 0.139 273.8)
XYZ	xyz(8.0902, 5.9792, 27.5103)
Luminance	0.0598 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333C91 #918833

analogous

#336B91 #333C91 #593391

triadic

#333C91 #91333C #3C9133

tetradic

#333C91 #91336B #918833 #339159

square

#333C91 #91336B #918833 #339159

split-complementary

#333C91 #915933 #6B9133

monochromatic

#131736 #232964 #333C91 #4450BD #717ACD

Accessibility & contrast

On white

9.56

#333C91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#333C91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333C91

9.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333C91	#FFFFFF	#000000	##FFFFFF
##333C91	1.00	9.56	2.20	9.56
#FFFFFF	9.56	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004994

Deuteranopia (green-blind)

#00418F

Tritanopia (blue-blind)

#005160

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #333c91;
/* rgb */ color: rgb(51, 60, 145);
/* oklch */ color: oklch(40.1% 0.139 273.8);

Tailwind

colors: {
  custom: {
    50: '#7571b2',
    500: '#333c91',
    950: '#000000',
  },
}

SCSS

$custom: #333c91;
$custom-light: #7571b2;
$custom-dark: #000000;

JSON

{
  "hex": "#333c91",
  "rgb": {
    "r": 51,
    "g": 60,
    "b": 145
  },
  "hsl": {
    "h": 234.255,
    "s": 47.959,
    "l": 38.431
  },
  "oklch": {
    "l": 0.40064,
    "c": 0.13898,
    "h": 273.8
  },
  "luminance": 0.0598
}

Semantic roles & 50–950 ramp

primary

#333C91

secondary

#B5AE6B

accent

#CB50D8

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #333C91

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

Preview Lab → · Contrast checker → · Palette generator →