#333DA0#333DA0

#333DA0 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.5% C 0.159 H 272.9°. Best body text is #FFFFFF at 9.07:1 contrast (WCAG AA passes).

Color values

HEX	#333DA0
RGB	rgb(51, 61, 160)
HSL	hsl(234, 52%, 41%)
HSV	hsv(234, 68%, 63%)
CMYK	cmyk(68.1%, 61.9%, 0%, 37.3%)
CIE-LAB	lab(30.83, 29.19, -54.98)
CIE-LCH	lch(30.83, 62.25, 297.97°)
OKLab	oklab(41.53% 0.0081 -0.1585)
OKLCH	oklch(41.53% 0.159 272.9)
XYZ	xyz(9.3770, 6.5785, 34.0265)
Luminance	0.0658 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333DA0 #A09633

analogous

#3374A0 #333DA0 #6033A0

triadic

#333DA0 #A0333D #3DA033

tetradic

#333DA0 #A03374 #A09633 #33A060

square

#333DA0 #A03374 #A09633 #33A060

split-complementary

#333DA0 #A06033 #74A033

monochromatic

#151A43 #242B72 #333DA0 #4B56C6 #7981D4

Accessibility & contrast

On white

9.07

#333DA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#333DA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333DA0

9.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333DA0	#FFFFFF	#000000	##FFFFFF
##333DA0	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)

#004EA3

Deuteranopia (green-blind)

#00449E

Tritanopia (blue-blind)

#005668

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #333da0;
/* rgb */ color: rgb(51, 61, 160);
/* oklch */ color: oklch(41.5% 0.159 272.9);

Tailwind

colors: {
  custom: {
    50: '#7972bd',
    500: '#333da0',
    950: '#000000',
  },
}

SCSS

$custom: #333da0;
$custom-light: #7972bd;
$custom-dark: #000000;

JSON

{
  "hex": "#333da0",
  "rgb": {
    "r": 51,
    "g": 61,
    "b": 160
  },
  "hsl": {
    "h": 234.495,
    "s": 51.659,
    "l": 41.373
  },
  "oklch": {
    "l": 0.4153,
    "c": 0.15873,
    "h": 272.9
  },
  "luminance": 0.06579
}

Semantic roles & 50–950 ramp

primary

#333DA0

secondary

#BDB672

accent

#CE4DDB

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #333DA0

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

Preview Lab → · Contrast checker → · Palette generator →