#333EA9#333EA9

#333EA9 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.5% C 0.170 H 272.4°. Best body text is #FFFFFF at 8.74:1 contrast (WCAG AA passes).

Color values

HEX	#333EA9
RGB	rgb(51, 62, 169)
HSL	hsl(234, 54%, 43%)
HSV	hsv(234, 70%, 66%)
CMYK	cmyk(69.8%, 63.3%, 0%, 33.7%)
CIE-LAB	lab(31.84, 31.78, -58.76)
CIE-LCH	lch(31.84, 66.80, 298.41°)
OKLab	oklab(42.51% 0.007 -0.1696)
OKLCH	oklch(42.51% 0.17 272.4)
XYZ	xyz(10.2469, 7.0126, 38.3420)
Luminance	0.0701 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333EA9 #A99E33

analogous

#3379A9 #333EA9 #6333A9

triadic

#333EA9 #A9333E #3EA933

tetradic

#333EA9 #A93379 #A99E33 #33A963

square

#333EA9 #A93379 #A99E33 #33A963

split-complementary

#333EA9 #A96333 #79A933

monochromatic

#171C4B #252D7A #333EA9 #4F5BCA #7E87D8

Accessibility & contrast

On white

8.74

#333EA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#333EA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333EA9

8.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333EA9	#FFFFFF	#000000	##FFFFFF
##333EA9	1.00	8.74	2.40	8.74
#FFFFFF	8.74	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050AC

Deuteranopia (green-blind)

#0046A7

Tritanopia (blue-blind)

#00596D

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #333ea9;
/* rgb */ color: rgb(51, 62, 169);
/* oklch */ color: oklch(42.5% 0.170 272.4);

Tailwind

colors: {
  custom: {
    50: '#7a73c3',
    500: '#333ea9',
    950: '#000000',
  },
}

SCSS

$custom: #333ea9;
$custom-light: #7a73c3;
$custom-dark: #000000;

JSON

{
  "hex": "#333ea9",
  "rgb": {
    "r": 51,
    "g": 62,
    "b": 169
  },
  "hsl": {
    "h": 234.407,
    "s": 53.636,
    "l": 43.137
  },
  "oklch": {
    "l": 0.42509,
    "c": 0.16972,
    "h": 272.4
  },
  "luminance": 0.07014
}

Semantic roles & 50–950 ramp

primary

#333EA9

secondary

#C1BA77

accent

#CF4BDD

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #333EA9

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

Preview Lab → · Contrast checker → · Palette generator →