#333BB2#333BB2

#333BB2 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.8% C 0.185 H 272.6°. Best body text is #FFFFFF at 8.72:1 contrast (WCAG AA passes).

Color values

HEX	#333BB2
RGB	rgb(51, 59, 178)
HSL	hsl(236, 55%, 45%)
HSV	hsv(236, 71%, 70%)
CMYK	cmyk(71.3%, 66.9%, 0%, 30.2%)
CIE-LAB	lab(31.91, 36.88, -64.01)
CIE-LCH	lch(31.91, 73.87, 299.95°)
OKLab	oklab(42.81% 0.0085 -0.185)
OKLCH	oklch(42.81% 0.185 272.6)
XYZ	xyz(10.9624, 7.0450, 42.8929)
Luminance	0.0705 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333BB2 #B2AA33

analogous

#337BB2 #333BB2 #6A33B2

triadic

#333BB2 #B2333B #3BB233

tetradic

#333BB2 #B2337B #B2AA33 #33B26A

square

#333BB2 #B2337B #B2AA33 #33B26A

split-complementary

#333BB2 #B26A33 #7BB233

monochromatic

#181B53 #252B82 #333BB2 #545CCE #8489DC

Accessibility & contrast

On white

8.72

#333BB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#333BB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333BB2

8.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333BB2	#FFFFFF	#000000	##FFFFFF
##333BB2	1.00	8.72	2.41	8.72
#FFFFFF	8.72	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B6

Deuteranopia (green-blind)

#0045B0

Tritanopia (blue-blind)

#005B71

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #333bb2;
/* rgb */ color: rgb(51, 59, 178);
/* oklch */ color: oklch(42.8% 0.185 272.6);

Tailwind

colors: {
  custom: {
    50: '#7d71ca',
    500: '#333bb2',
    950: '#000000',
  },
}

SCSS

$custom: #333bb2;
$custom-light: #7d71ca;
$custom-dark: #000000;

JSON

{
  "hex": "#333bb2",
  "rgb": {
    "r": 51,
    "g": 59,
    "b": 178
  },
  "hsl": {
    "h": 236.22,
    "s": 55.459,
    "l": 44.902
  },
  "oklch": {
    "l": 0.42807,
    "c": 0.18518,
    "h": 272.6
  },
  "luminance": 0.07046
}

Semantic roles & 50–950 ramp

primary

#333BB2

secondary

#C5C07C

accent

#D549DF

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #333BB2

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

Preview Lab → · Contrast checker → · Palette generator →