#3355BF#3355BF

#3355BF is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.8% C 0.171 H 266.5°. Best body text is #FFFFFF at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#3355BF
RGB	rgb(51, 85, 191)
HSL	hsl(225, 58%, 47%)
HSV	hsv(225, 73%, 75%)
CMYK	cmyk(73.3%, 55.5%, 0%, 25.1%)
CIE-LAB	lab(39.51, 24.86, -59.26)
CIE-LCH	lch(39.51, 64.26, 292.76°)
OKLab	oklab(48.77% -0.0104 -0.1708)
OKLCH	oklch(48.77% 0.171 266.5)
XYZ	xyz(14.0144, 10.9609, 50.6572)
Luminance	0.1096 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3355BF #BF9D33

analogous

#339BBF #3355BF #5733BF

triadic

#3355BF #BF3355 #55BF33

tetradic

#3355BF #BF339B #BF9D33 #33BF57

square

#3355BF #BF339B #BF9D33 #33BF57

split-complementary

#3355BF #BF5733 #9BBF33

monochromatic

#192A5E #26408F #3355BF #5C79D3 #8CA1E0

Accessibility & contrast

On white

6.58

#3355BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#3355BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3355BF

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3355BF	#FFFFFF	#000000	##FFFFFF
##3355BF	1.00	6.58	3.19	6.58
#FFFFFF	6.58	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064C3

Deuteranopia (green-blind)

#0057BD

Tritanopia (blue-blind)

#006F81

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3355bf;
/* rgb */ color: rgb(51, 85, 191);
/* oklch */ color: oklch(48.8% 0.171 266.5);

Tailwind

colors: {
  custom: {
    50: '#7e84d3',
    500: '#3355bf',
    950: '#000000',
  },
}

SCSS

$custom: #3355bf;
$custom-light: #7e84d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3355bf",
  "rgb": {
    "r": 51,
    "g": 85,
    "b": 191
  },
  "hsl": {
    "h": 225.429,
    "s": 57.851,
    "l": 47.451
  },
  "oklch": {
    "l": 0.48774,
    "c": 0.17109,
    "h": 266.5
  },
  "luminance": 0.10962
}

Semantic roles & 50–950 ramp

primary

#3355BF

secondary

#CBB983

accent

#BC47E1

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #3355BF

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

Preview Lab → · Contrast checker → · Palette generator →