#333CA9#333CA9

#333CA9 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.1% C 0.172 H 272.8°. Best body text is #FFFFFF at 8.90:1 contrast (WCAG AA passes).

Color values

HEX	#333CA9
RGB	rgb(51, 60, 169)
HSL	hsl(235, 54%, 43%)
HSV	hsv(235, 70%, 66%)
CMYK	cmyk(69.8%, 64.5%, 0%, 33.7%)
CIE-LAB	lab(31.35, 33.07, -59.56)
CIE-LCH	lch(31.35, 68.12, 299.04°)
OKLab	oklab(42.15% 0.0085 -0.1719)
OKLCH	oklch(42.15% 0.172 272.8)
XYZ	xyz(10.1401, 6.7991, 38.3064)
Luminance	0.0680 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333CA9 #A9A033

analogous

#3377A9 #333CA9 #6533A9

triadic

#333CA9 #A9333C #3CA933

tetradic

#333CA9 #A93377 #A9A033 #33A965

square

#333CA9 #A93377 #A9A033 #33A965

split-complementary

#333CA9 #A96533 #77A933

monochromatic

#171B4B #252B7A #333CA9 #4F59CA #7E85D8

Accessibility & contrast

On white

8.90

#333CA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#333CA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333CA9

8.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333CA9	#FFFFFF	#000000	##FFFFFF
##333CA9	1.00	8.90	2.36	8.90
#FFFFFF	8.90	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FAC

Deuteranopia (green-blind)

#0044A7

Tritanopia (blue-blind)

#00586D

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #333ca9;
/* rgb */ color: rgb(51, 60, 169);
/* oklch */ color: oklch(42.1% 0.172 272.8);

Tailwind

colors: {
  custom: {
    50: '#7b72c4',
    500: '#333ca9',
    950: '#000000',
  },
}

SCSS

$custom: #333ca9;
$custom-light: #7b72c4;
$custom-dark: #000000;

JSON

{
  "hex": "#333ca9",
  "rgb": {
    "r": 51,
    "g": 60,
    "b": 169
  },
  "hsl": {
    "h": 235.424,
    "s": 53.636,
    "l": 43.137
  },
  "oklch": {
    "l": 0.42149,
    "c": 0.17216,
    "h": 272.8
  },
  "luminance": 0.068
}

Semantic roles & 50–950 ramp

primary

#333CA9

secondary

#C1BB77

accent

#D24BDD

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #333CA9

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

Preview Lab → · Contrast checker → · Palette generator →