#333BC9#333BC9

#333BC9 is a mid, highly saturated blue. Relative luminance 0.080; OKLCH L 45.0% C 0.214 H 271.6°. Best body text is #FFFFFF at 8.05:1 contrast (WCAG AA passes).

Color values

HEX	#333BC9
RGB	rgb(51, 59, 201)
HSL	hsl(237, 60%, 49%)
HSV	hsv(237, 75%, 79%)
CMYK	cmyk(74.6%, 70.6%, 0%, 21.2%)
CIE-LAB	lab(34.08, 44.80, -73.98)
CIE-LCH	lch(34.08, 86.49, 301.20°)
OKLab	oklab(45.04% 0.0058 -0.2141)
OKLCH	oklch(45.04% 0.214 271.6)
XYZ	xyz(13.4683, 8.0474, 56.0905)
Luminance	0.0805 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.68

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333BC9 #C9C133

analogous

#3386C9 #333BC9 #7633C9

triadic

#333BC9 #C9333B #3BC933

tetradic

#333BC9 #C93386 #C9C133 #33C976

square

#333BC9 #C93386 #C9C133 #33C976

split-complementary

#333BC9 #C97633 #86C933

monochromatic

#1A1E67 #272D98 #333BC9 #6268D7 #9397E4

Accessibility & contrast

On white

8.05

#333BC9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#333BC9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333BC9

8.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333BC9	#FFFFFF	#000000	##FFFFFF
##333BC9	1.00	8.05	2.61	8.05
#FFFFFF	8.05	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057CD

Deuteranopia (green-blind)

#0049C6

Tritanopia (blue-blind)

#00637E

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #333bc9;
/* rgb */ color: rgb(51, 59, 201);
/* oklch */ color: oklch(45.0% 0.214 271.6);

Tailwind

colors: {
  custom: {
    50: '#8272db',
    500: '#333bc9',
    950: '#000000',
  },
}

SCSS

$custom: #333bc9;
$custom-light: #8272db;
$custom-dark: #000000;

JSON

{
  "hex": "#333bc9",
  "rgb": {
    "r": 51,
    "g": 59,
    "b": 201
  },
  "hsl": {
    "h": 236.8,
    "s": 59.524,
    "l": 49.412
  },
  "oklch": {
    "l": 0.45035,
    "c": 0.21419,
    "h": 271.6
  },
  "luminance": 0.08049
}

Semantic roles & 50–950 ramp

primary

#333BC9

secondary

#CFCB89

accent

#DA45E3

background

#F8F6FD

surface

#F0ECFB

border

#CBC7D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #333BC9

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

Preview Lab → · Contrast checker → · Palette generator →