#3369BB#3369BB

#3369BB is a mid, vivid blue. Relative luminance 0.144; OKLCH L 52.7% C 0.141 H 258.7°. Best body text is #FFFFFF at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#3369BB
RGB	rgb(51, 105, 187)
HSL	hsl(216, 57%, 47%)
HSV	hsv(216, 73%, 73%)
CMYK	cmyk(72.7%, 43.9%, 0%, 26.7%)
CIE-LAB	lab(44.79, 10.45, -48.42)
CIE-LCH	lch(44.79, 49.54, 282.18°)
OKLab	oklab(52.72% -0.0278 -0.1385)
OKLCH	oklch(52.72% 0.141 258.7)
XYZ	xyz(15.3832, 14.3931, 48.9715)
Luminance	0.1439 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3369BB #BB8533

analogous

#33ADBB #3369BB #4133BB

triadic

#3369BB #BB3369 #69BB33

tetradic

#3369BB #BB33AD #BB8533 #33BB41

square

#3369BB #BB33AD #BB8533 #33BB41

split-complementary

#3369BB #BB4133 #ADBB33

monochromatic

#19335B #264E8B #3369BB #5989D2 #89ABDF

Accessibility & contrast

On white

5.41

#3369BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.88

#3369BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3369BB

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3369BB	#FFFFFF	#000000	##FFFFFF
##3369BB	1.00	5.41	3.88	5.41
#FFFFFF	5.41	1.00	21.00	1.00
#000000	3.88	21.00	1.00	21.00
##FFFFFF	5.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4071BE

Deuteranopia (green-blind)

#2764B9

Tritanopia (blue-blind)

#007C89

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3369bb;
/* rgb */ color: rgb(51, 105, 187);
/* oklch */ color: oklch(52.7% 0.141 258.7);

Tailwind

colors: {
  custom: {
    50: '#7c93d0',
    500: '#3369bb',
    950: '#000000',
  },
}

SCSS

$custom: #3369bb;
$custom-light: #7c93d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3369bb",
  "rgb": {
    "r": 51,
    "g": 105,
    "b": 187
  },
  "hsl": {
    "h": 216.176,
    "s": 57.143,
    "l": 46.667
  },
  "oklch": {
    "l": 0.52717,
    "c": 0.14131,
    "h": 258.7
  },
  "luminance": 0.14395
}

Semantic roles & 50–950 ramp

primary

#3369BB

secondary

#C9AC81

accent

#A447E0

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #3369BB

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

Preview Lab → · Contrast checker → · Palette generator →