#3350BB#3350BB

#3350BB is a mid, vivid blue. Relative luminance 0.100; OKLCH L 47.5% C 0.172 H 267.7°. Best body text is #FFFFFF at 6.99:1 contrast (WCAG AA passes).

Color values

HEX	#3350BB
RGB	rgb(51, 80, 187)
HSL	hsl(227, 57%, 47%)
HSV	hsv(227, 73%, 73%)
CMYK	cmyk(72.7%, 57.2%, 0%, 26.7%)
CIE-LAB	lab(37.89, 26.64, -59.56)
CIE-LCH	lch(37.89, 65.24, 294.10°)
OKLab	oklab(47.46% -0.0068 -0.1717)
OKLCH	oklch(47.46% 0.172 267.7)
XYZ	xyz(13.2004, 10.0276, 48.2439)
Luminance	0.1003 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3350BB #BB9E33

analogous

#3394BB #3350BB #5A33BB

triadic

#3350BB #BB3350 #50BB33

tetradic

#3350BB #BB3394 #BB9E33 #33BB5A

square

#3350BB #BB3394 #BB9E33 #33BB5A

split-complementary

#3350BB #BB5A33 #94BB33

monochromatic

#19275B #263B8B #3350BB #5973D2 #899CDF

Accessibility & contrast

On white

6.99

#3350BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#3350BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3350BB

6.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3350BB	#FFFFFF	#000000	##FFFFFF
##3350BB	1.00	6.99	3.01	6.99
#FFFFFF	6.99	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060BF

Deuteranopia (green-blind)

#0053B9

Tritanopia (blue-blind)

#006A7D

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #3350bb;
/* rgb */ color: rgb(51, 80, 187);
/* oklch */ color: oklch(47.5% 0.172 267.7);

Tailwind

colors: {
  custom: {
    50: '#7d80d0',
    500: '#3350bb',
    950: '#000000',
  },
}

SCSS

$custom: #3350bb;
$custom-light: #7d80d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3350bb",
  "rgb": {
    "r": 51,
    "g": 80,
    "b": 187
  },
  "hsl": {
    "h": 227.206,
    "s": 57.143,
    "l": 46.667
  },
  "oklch": {
    "l": 0.4746,
    "c": 0.17185,
    "h": 267.7
  },
  "luminance": 0.10029
}

Semantic roles & 50–950 ramp

primary

#3350BB

secondary

#C9BA81

accent

#C047E0

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3350BB

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

Preview Lab → · Contrast checker → · Palette generator →