#333B8A#333B8A

#333B8A is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.3% C 0.130 H 274.4°. Best body text is #FFFFFF at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#333B8A
RGB	rgb(51, 59, 138)
HSL	hsl(234, 46%, 37%)
HSV	hsv(234, 63%, 54%)
CMYK	cmyk(63%, 57.2%, 0%, 45.9%)
CIE-LAB	lab(28.55, 22.56, -45.22)
CIE-LCH	lch(28.55, 50.54, 296.51°)
OKLab	oklab(39.29% 0.0099 -0.1298)
OKLCH	oklch(39.29% 0.13 274.4)
XYZ	xyz(7.5151, 5.6661, 24.7375)
Luminance	0.0567 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333B8A #8A8233

analogous

#33678A #333B8A #57338A

triadic

#333B8A #8A333B #3B8A33

tetradic

#333B8A #8A3367 #8A8233 #338A57

square

#333B8A #8A3367 #8A8233 #338A57

split-complementary

#333B8A #8A5733 #678A33

monochromatic

#121531 #22285D #333B8A #444EB7 #6E76C9

Accessibility & contrast

On white

9.84

#333B8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#333B8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333B8A

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333B8A	#FFFFFF	#000000	##FFFFFF
##333B8A	1.00	9.84	2.13	9.84
#FFFFFF	9.84	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00478D

Deuteranopia (green-blind)

#004088

Tritanopia (blue-blind)

#004E5C

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #333b8a;
/* rgb */ color: rgb(51, 59, 138);
/* oklch */ color: oklch(39.3% 0.130 274.4);

Tailwind

colors: {
  custom: {
    50: '#7470ad',
    500: '#333b8a',
    950: '#000000',
  },
}

SCSS

$custom: #333b8a;
$custom-light: #7470ad;
$custom-dark: #000000;

JSON

{
  "hex": "#333b8a",
  "rgb": {
    "r": 51,
    "g": 59,
    "b": 138
  },
  "hsl": {
    "h": 234.483,
    "s": 46.032,
    "l": 37.059
  },
  "oklch": {
    "l": 0.39293,
    "c": 0.13022,
    "h": 274.4
  },
  "luminance": 0.05667
}

Semantic roles & 50–950 ramp

primary

#333B8A

secondary

#B1AB67

accent

#CA52D6

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #333B8A

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

Preview Lab → · Contrast checker → · Palette generator →