#333DA9#333DA9

#333DA9 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.3% C 0.171 H 272.6°. Best body text is #FFFFFF at 8.82:1 contrast (WCAG AA passes).

Color values

HEX	#333DA9
RGB	rgb(51, 61, 169)
HSL	hsl(235, 54%, 43%)
HSV	hsv(235, 70%, 66%)
CMYK	cmyk(69.8%, 63.9%, 0%, 33.7%)
CIE-LAB	lab(31.59, 32.42, -59.16)
CIE-LCH	lch(31.59, 67.46, 298.73°)
OKLab	oklab(42.33% 0.0077 -0.1708)
OKLCH	oklch(42.33% 0.171 272.6)
XYZ	xyz(10.1930, 6.9049, 38.3240)
Luminance	0.0691 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333DA9 #A99F33

analogous

#3378A9 #333DA9 #6433A9

triadic

#333DA9 #A9333D #3DA933

tetradic

#333DA9 #A93378 #A99F33 #33A964

square

#333DA9 #A93378 #A99F33 #33A964

split-complementary

#333DA9 #A96433 #78A933

monochromatic

#171B4B #252C7A #333DA9 #4F5ACA #7E86D8

Accessibility & contrast

On white

8.82

#333DA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#333DA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333DA9

8.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333DA9	#FFFFFF	#000000	##FFFFFF
##333DA9	1.00	8.82	2.38	8.82
#FFFFFF	8.82	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050AC

Deuteranopia (green-blind)

#0045A7

Tritanopia (blue-blind)

#00596D

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #333da9;
/* rgb */ color: rgb(51, 61, 169);
/* oklch */ color: oklch(42.3% 0.171 272.6);

Tailwind

colors: {
  custom: {
    50: '#7b72c3',
    500: '#333da9',
    950: '#000000',
  },
}

SCSS

$custom: #333da9;
$custom-light: #7b72c3;
$custom-dark: #000000;

JSON

{
  "hex": "#333da9",
  "rgb": {
    "r": 51,
    "g": 61,
    "b": 169
  },
  "hsl": {
    "h": 234.915,
    "s": 53.636,
    "l": 43.137
  },
  "oklch": {
    "l": 0.42328,
    "c": 0.17094,
    "h": 272.6
  },
  "luminance": 0.06906
}

Semantic roles & 50–950 ramp

primary

#333DA9

secondary

#C1BB77

accent

#D14BDD

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #333DA9

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

Preview Lab → · Contrast checker → · Palette generator →