#333DA8#333DA8

#333DA8 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.2% C 0.170 H 272.6°. Best body text is #FFFFFF at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#333DA8
RGB	rgb(51, 61, 168)
HSL	hsl(235, 53%, 43%)
HSV	hsv(235, 70%, 66%)
CMYK	cmyk(69.6%, 63.7%, 0%, 34.1%)
CIE-LAB	lab(31.50, 32.07, -58.70)
CIE-LCH	lch(31.50, 66.89, 298.65°)
OKLab	oklab(42.24% 0.0078 -0.1694)
OKLCH	oklch(42.24% 0.17 272.6)
XYZ	xyz(10.0995, 6.8675, 37.8315)
Luminance	0.0687 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333DA8 #A89E33

analogous

#3377A8 #333DA8 #6333A8

triadic

#333DA8 #A8333D #3DA833

tetradic

#333DA8 #A83377 #A89E33 #33A863

square

#333DA8 #A83377 #A89E33 #33A863

split-complementary

#333DA8 #A86333 #77A833

monochromatic

#161B4A #252C79 #333DA8 #4F59C9 #7E85D8

Accessibility & contrast

On white

8.85

#333DA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#333DA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333DA8

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333DA8	#FFFFFF	#000000	##FFFFFF
##333DA8	1.00	8.85	2.37	8.85
#FFFFFF	8.85	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050AB

Deuteranopia (green-blind)

#0045A6

Tritanopia (blue-blind)

#00586C

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #333da8;
/* rgb */ color: rgb(51, 61, 168);
/* oklch */ color: oklch(42.2% 0.170 272.6);

Tailwind

colors: {
  custom: {
    50: '#7a72c3',
    500: '#333da8',
    950: '#000000',
  },
}

SCSS

$custom: #333da8;
$custom-light: #7a72c3;
$custom-dark: #000000;

JSON

{
  "hex": "#333da8",
  "rgb": {
    "r": 51,
    "g": 61,
    "b": 168
  },
  "hsl": {
    "h": 234.872,
    "s": 53.425,
    "l": 42.941
  },
  "oklch": {
    "l": 0.42238,
    "c": 0.1696,
    "h": 272.6
  },
  "luminance": 0.06868
}

Semantic roles & 50–950 ramp

primary

#333DA8

secondary

#C1BA76

accent

#D04BDD

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #333DA8

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

Preview Lab → · Contrast checker → · Palette generator →