#333CA3#333CA3

#333CA3 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.6% C 0.164 H 273.1°. Best body text is #FFFFFF at 9.07:1 contrast (WCAG AA passes).

Color values

HEX	#333CA3
RGB	rgb(51, 60, 163)
HSL	hsl(235, 52%, 42%)
HSV	hsv(235, 69%, 64%)
CMYK	cmyk(68.7%, 63.2%, 0%, 36.1%)
CIE-LAB	lab(30.83, 30.92, -56.79)
CIE-LCH	lch(30.83, 64.67, 298.57°)
OKLab	oklab(41.61% 0.0088 -0.1638)
OKLCH	oklch(41.61% 0.164 273.1)
XYZ	xyz(9.5897, 6.5790, 35.4077)
Luminance	0.0658 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333CA3 #A39A33

analogous

#3374A3 #333CA3 #6233A3

triadic

#333CA3 #A3333C #3CA333

tetradic

#333CA3 #A33374 #A39A33 #33A362

square

#333CA3 #A33374 #A39A33 #33A362

split-complementary

#333CA3 #A36233 #74A333

monochromatic

#161A46 #242B74 #333CA3 #4C56C7 #7B82D6

Accessibility & contrast

On white

9.07

#333CA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#333CA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333CA3

9.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333CA3	#FFFFFF	#000000	##FFFFFF
##333CA3	1.00	9.07	2.32	9.07
#FFFFFF	9.07	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA6

Deuteranopia (green-blind)

#0044A1

Tritanopia (blue-blind)

#00566A

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #333ca3;
/* rgb */ color: rgb(51, 60, 163);
/* oklch */ color: oklch(41.6% 0.164 273.1);

Tailwind

colors: {
  custom: {
    50: '#7971bf',
    500: '#333ca3',
    950: '#000000',
  },
}

SCSS

$custom: #333ca3;
$custom-light: #7971bf;
$custom-dark: #000000;

JSON

{
  "hex": "#333ca3",
  "rgb": {
    "r": 51,
    "g": 60,
    "b": 163
  },
  "hsl": {
    "h": 235.179,
    "s": 52.336,
    "l": 41.961
  },
  "oklch": {
    "l": 0.4161,
    "c": 0.16408,
    "h": 273.1
  },
  "luminance": 0.0658
}

Semantic roles & 50–950 ramp

primary

#333CA3

secondary

#BEB873

accent

#D04CDC

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #333CA3

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

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