#333DAA#333DAA

#333DAA is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.4% C 0.172 H 272.6°. Best body text is #FFFFFF at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#333DAA
RGB	rgb(51, 61, 170)
HSL	hsl(235, 54%, 43%)
HSV	hsv(235, 70%, 67%)
CMYK	cmyk(70%, 64.1%, 0%, 33.3%)
CIE-LAB	lab(31.68, 32.78, -59.62)
CIE-LCH	lch(31.68, 68.04, 298.80°)
OKLab	oklab(42.42% 0.0077 -0.1721)
OKLCH	oklch(42.42% 0.172 272.6)
XYZ	xyz(10.2872, 6.9426, 38.8203)
Luminance	0.0694 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.18

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333DAA #AAA033

analogous

#3378AA #333DAA #6433AA

triadic

#333DAA #AA333D #3DAA33

tetradic

#333DAA #AA3378 #AAA033 #33AA64

square

#333DAA #AA3378 #AAA033 #33AA64

split-complementary

#333DAA #AA6433 #78AA33

monochromatic

#171B4C #252C7B #333DAA #505ACA #7F86D9

Accessibility & contrast

On white

8.79

#333DAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#333DAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333DAA

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333DAA	#FFFFFF	#000000	##FFFFFF
##333DAA	1.00	8.79	2.39	8.79
#FFFFFF	8.79	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050AD

Deuteranopia (green-blind)

#0045A8

Tritanopia (blue-blind)

#00596E

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #333daa;
/* rgb */ color: rgb(51, 61, 170);
/* oklch */ color: oklch(42.4% 0.172 272.6);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#333daa",
  "rgb": {
    "r": 51,
    "g": 61,
    "b": 170
  },
  "hsl": {
    "h": 234.958,
    "s": 53.846,
    "l": 43.333
  },
  "oklch": {
    "l": 0.42418,
    "c": 0.17228,
    "h": 272.6
  },
  "luminance": 0.06944
}

Semantic roles & 50–950 ramp

primary

#333DAA

secondary

#C2BB77

accent

#D14BDD

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #333DAA

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

Preview Lab → · Contrast checker → · Palette generator →