#333CA4#333CA4

#333CA4 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.7% C 0.165 H 273.0°. Best body text is #FFFFFF at 9.04:1 contrast (WCAG AA passes).

Color values

HEX	#333CA4
RGB	rgb(51, 60, 164)
HSL	hsl(235, 53%, 42%)
HSV	hsv(235, 69%, 64%)
CMYK	cmyk(68.9%, 63.4%, 0%, 35.7%)
CIE-LAB	lab(30.91, 31.28, -57.26)
CIE-LCH	lch(30.91, 65.25, 298.65°)
OKLab	oklab(41.7% 0.0088 -0.1652)
OKLCH	oklch(41.7% 0.165 273)
XYZ	xyz(9.6797, 6.6150, 35.8815)
Luminance	0.0662 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333CA4 #A49B33

analogous

#3375A4 #333CA4 #6233A4

triadic

#333CA4 #A4333C #3CA433

tetradic

#333CA4 #A43375 #A49B33 #33A462

square

#333CA4 #A43375 #A49B33 #33A462

split-complementary

#333CA4 #A46233 #75A433

monochromatic

#161A47 #242B75 #333CA4 #4D56C8 #7B83D6

Accessibility & contrast

On white

9.04

#333CA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#333CA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333CA4

9.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333CA4	#FFFFFF	#000000	##FFFFFF
##333CA4	1.00	9.04	2.32	9.04
#FFFFFF	9.04	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA7

Deuteranopia (green-blind)

#0044A2

Tritanopia (blue-blind)

#00576A

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #333ca4;
/* rgb */ color: rgb(51, 60, 164);
/* oklch */ color: oklch(41.7% 0.165 273.0);

Tailwind

colors: {
  custom: {
    50: '#7a72c0',
    500: '#333ca4',
    950: '#000000',
  },
}

SCSS

$custom: #333ca4;
$custom-light: #7a72c0;
$custom-dark: #000000;

JSON

{
  "hex": "#333ca4",
  "rgb": {
    "r": 51,
    "g": 60,
    "b": 164
  },
  "hsl": {
    "h": 235.221,
    "s": 52.558,
    "l": 42.157
  },
  "oklch": {
    "l": 0.41699,
    "c": 0.16543,
    "h": 273
  },
  "luminance": 0.06616
}

Semantic roles & 50–950 ramp

primary

#333CA4

secondary

#BFB974

accent

#D04CDC

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #333CA4

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

Preview Lab → · Contrast checker → · Palette generator →