#3353BB#3353BB

#3353BB is a mid, vivid blue. Relative luminance 0.105; OKLCH L 48.1% C 0.168 H 266.9°. Best body text is #FFFFFF at 6.78:1 contrast (WCAG AA passes).

Color values

HEX	#3353BB
RGB	rgb(51, 83, 187)
HSL	hsl(226, 57%, 47%)
HSV	hsv(226, 73%, 73%)
CMYK	cmyk(72.7%, 55.6%, 0%, 26.7%)
CIE-LAB	lab(38.68, 24.68, -58.27)
CIE-LCH	lch(38.68, 63.28, 292.96°)
OKLab	oklab(48.06% -0.0091 -0.1679)
OKLCH	oklch(48.06% 0.168 266.9)
XYZ	xyz(13.4250, 10.4768, 48.3188)
Luminance	0.1048 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3353BB #BB9B33

analogous

#3397BB #3353BB #5733BB

triadic

#3353BB #BB3353 #53BB33

tetradic

#3353BB #BB3397 #BB9B33 #33BB57

square

#3353BB #BB3397 #BB9B33 #33BB57

split-complementary

#3353BB #BB5733 #97BB33

monochromatic

#19285B #263E8B #3353BB #5976D2 #899EDF

Accessibility & contrast

On white

6.78

#3353BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#3353BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3353BB

6.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3353BB	#FFFFFF	#000000	##FFFFFF
##3353BB	1.00	6.78	3.10	6.78
#FFFFFF	6.78	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062BF

Deuteranopia (green-blind)

#0055B9

Tritanopia (blue-blind)

#006C7F

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3353bb;
/* rgb */ color: rgb(51, 83, 187);
/* oklch */ color: oklch(48.1% 0.168 266.9);

Tailwind

colors: {
  custom: {
    50: '#7d82d0',
    500: '#3353bb',
    950: '#000000',
  },
}

SCSS

$custom: #3353bb;
$custom-light: #7d82d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3353bb",
  "rgb": {
    "r": 51,
    "g": 83,
    "b": 187
  },
  "hsl": {
    "h": 225.882,
    "s": 57.143,
    "l": 46.667
  },
  "oklch": {
    "l": 0.48055,
    "c": 0.16814,
    "h": 266.9
  },
  "luminance": 0.10478
}

Semantic roles & 50–950 ramp

primary

#3353BB

secondary

#C9B881

accent

#BC47E0

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3353BB

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

Preview Lab → · Contrast checker → · Palette generator →