#333EA1#333EA1

#333EA1 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.8% C 0.159 H 272.6°. Best body text is #FFFFFF at 8.96:1 contrast (WCAG AA passes).

Color values

HEX	#333EA1
RGB	rgb(51, 62, 161)
HSL	hsl(234, 52%, 42%)
HSV	hsv(234, 68%, 63%)
CMYK	cmyk(68.3%, 61.5%, 0%, 36.9%)
CIE-LAB	lab(31.16, 28.90, -55.04)
CIE-LCH	lch(31.16, 62.17, 297.70°)
OKLab	oklab(41.81% 0.0073 -0.1587)
OKLCH	oklch(41.81% 0.159 272.6)
XYZ	xyz(9.5187, 6.7214, 34.5070)
Luminance	0.0672 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333EA1 #A19633

analogous

#3375A1 #333EA1 #5F33A1

triadic

#333EA1 #A1333E #3EA133

tetradic

#333EA1 #A13375 #A19633 #33A15F

square

#333EA1 #A13375 #A19633 #33A15F

split-complementary

#333EA1 #A15F33 #75A133

monochromatic

#161A44 #242C73 #333EA1 #4B57C6 #7A83D5

Accessibility & contrast

On white

8.96

#333EA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#333EA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333EA1

8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333EA1	#FFFFFF	#000000	##FFFFFF
##333EA1	1.00	8.96	2.34	8.96
#FFFFFF	8.96	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA4

Deuteranopia (green-blind)

#00449F

Tritanopia (blue-blind)

#005769

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #333ea1;
/* rgb */ color: rgb(51, 62, 161);
/* oklch */ color: oklch(41.8% 0.159 272.6);

Tailwind

colors: {
  custom: {
    50: '#7973be',
    500: '#333ea1',
    950: '#000000',
  },
}

SCSS

$custom: #333ea1;
$custom-light: #7973be;
$custom-dark: #000000;

JSON

{
  "hex": "#333ea1",
  "rgb": {
    "r": 51,
    "g": 62,
    "b": 161
  },
  "hsl": {
    "h": 234,
    "s": 51.887,
    "l": 41.569
  },
  "oklch": {
    "l": 0.41805,
    "c": 0.15884,
    "h": 272.6
  },
  "luminance": 0.06722
}

Semantic roles & 50–950 ramp

primary

#333EA1

secondary

#BDB672

accent

#CD4CDB

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #333EA1

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

Preview Lab → · Contrast checker → · Palette generator →