#333BB9#333BB9

#333BB9 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.5% C 0.194 H 272.3°. Best body text is #FFFFFF at 8.51:1 contrast (WCAG AA passes).

Color values

HEX	#333BB9
RGB	rgb(51, 59, 185)
HSL	hsl(236, 57%, 46%)
HSV	hsv(236, 72%, 73%)
CMYK	cmyk(72.4%, 68.1%, 0%, 27.5%)
CIE-LAB	lab(32.55, 39.32, -67.10)
CIE-LCH	lch(32.55, 77.78, 300.37°)
OKLab	oklab(43.47% 0.0078 -0.194)
OKLCH	oklch(43.47% 0.194 272.3)
XYZ	xyz(11.6832, 7.3333, 46.6893)
Luminance	0.0733 (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

#333BB9 #B9B133

analogous

#337EB9 #333BB9 #6E33B9

triadic

#333BB9 #B9333B #3BB933

tetradic

#333BB9 #B9337E #B9B133 #33B96E

square

#333BB9 #B9337E #B9B133 #33B96E

split-complementary

#333BB9 #B96E33 #7EB933

monochromatic

#191C59 #262C89 #333BB9 #585FD1 #888DDE

Accessibility & contrast

On white

8.51

#333BB9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#333BB9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333BB9

8.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333BB9	#FFFFFF	#000000	##FFFFFF
##333BB9	1.00	8.51	2.47	8.51
#FFFFFF	8.51	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053BD

Deuteranopia (green-blind)

#0046B7

Tritanopia (blue-blind)

#005D75

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #333bb9;
/* rgb */ color: rgb(51, 59, 185);
/* oklch */ color: oklch(43.5% 0.194 272.3);

Tailwind

colors: {
  custom: {
    50: '#7e71cf',
    500: '#333bb9',
    950: '#000000',
  },
}

SCSS

$custom: #333bb9;
$custom-light: #7e71cf;
$custom-dark: #000000;

JSON

{
  "hex": "#333bb9",
  "rgb": {
    "r": 51,
    "g": 59,
    "b": 185
  },
  "hsl": {
    "h": 236.418,
    "s": 56.78,
    "l": 46.275
  },
  "oklch": {
    "l": 0.43472,
    "c": 0.19419,
    "h": 272.3
  },
  "luminance": 0.07335
}

Semantic roles & 50–950 ramp

primary

#333BB9

secondary

#C8C480

accent

#D748E0

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #333BB9

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

Preview Lab → · Contrast checker → · Palette generator →