#333B91#333B91

#333B91 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.9% C 0.140 H 274.1°. Best body text is #FFFFFF at 9.65:1 contrast (WCAG AA passes).

Color values

HEX	#333B91
RGB	rgb(51, 59, 145)
HSL	hsl(235, 48%, 38%)
HSV	hsv(235, 65%, 57%)
CMYK	cmyk(64.8%, 59.3%, 0%, 43.1%)
CIE-LAB	lab(29.10, 25.09, -48.66)
CIE-LCH	lch(29.10, 54.75, 297.28°)
OKLab	oklab(39.87% 0.0101 -0.1399)
OKLCH	oklch(39.87% 0.14 274.1)
XYZ	xyz(8.0384, 5.8754, 27.4930)
Luminance	0.0588 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333B91 #918933

analogous

#336A91 #333B91 #5A3391

triadic

#333B91 #91333B #3B9133

tetradic

#333B91 #91336A #918933 #33915A

square

#333B91 #91336A #918933 #33915A

split-complementary

#333B91 #915A33 #6A9133

monochromatic

#131636 #232964 #333B91 #444EBD #7179CD

Accessibility & contrast

On white

9.65

#333B91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#333B91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333B91

9.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333B91	#FFFFFF	#000000	##FFFFFF
##333B91	1.00	9.65	2.18	9.65
#FFFFFF	9.65	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004994

Deuteranopia (green-blind)

#00418F

Tritanopia (blue-blind)

#005060

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #333b91;
/* rgb */ color: rgb(51, 59, 145);
/* oklch */ color: oklch(39.9% 0.140 274.1);

Tailwind

colors: {
  custom: {
    50: '#7670b2',
    500: '#333b91',
    950: '#000000',
  },
}

SCSS

$custom: #333b91;
$custom-light: #7670b2;
$custom-dark: #000000;

JSON

{
  "hex": "#333b91",
  "rgb": {
    "r": 51,
    "g": 59,
    "b": 145
  },
  "hsl": {
    "h": 234.894,
    "s": 47.959,
    "l": 38.431
  },
  "oklch": {
    "l": 0.39867,
    "c": 0.14031,
    "h": 274.1
  },
  "luminance": 0.05876
}

Semantic roles & 50–950 ramp

primary

#333B91

secondary

#B5AF6B

accent

#CC50D8

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #333B91

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

Preview Lab → · Contrast checker → · Palette generator →