#3359BB#3359BB

#3359BB is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.3% C 0.161 H 265.0°. Best body text is #FFFFFF at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#3359BB
RGB	rgb(51, 89, 187)
HSL	hsl(223, 57%, 47%)
HSV	hsv(223, 73%, 73%)
CMYK	cmyk(72.7%, 52.4%, 0%, 26.7%)
CIE-LAB	lab(40.30, 20.77, -55.64)
CIE-LCH	lch(40.30, 59.39, 290.47°)
OKLab	oklab(49.28% -0.0139 -0.1601)
OKLCH	oklch(49.28% 0.161 265)
XYZ	xyz(13.9041, 11.4349, 48.4785)
Luminance	0.1144 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3359BB #BB9533

analogous

#339DBB #3359BB #5133BB

triadic

#3359BB #BB3359 #59BB33

tetradic

#3359BB #BB339D #BB9533 #33BB51

square

#3359BB #BB339D #BB9533 #33BB51

split-complementary

#3359BB #BB5133 #9DBB33

monochromatic

#192B5B #26428B #3359BB #597BD2 #89A1DF

Accessibility & contrast

On white

6.39

#3359BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#3359BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3359BB

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3359BB	#FFFFFF	#000000	##FFFFFF
##3359BB	1.00	6.39	3.29	6.39
#FFFFFF	6.39	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1766BE

Deuteranopia (green-blind)

#0059B9

Tritanopia (blue-blind)

#007181

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3359bb;
/* rgb */ color: rgb(51, 89, 187);
/* oklch */ color: oklch(49.3% 0.161 265.0);

Tailwind

colors: {
  custom: {
    50: '#7d87d0',
    500: '#3359bb',
    950: '#000000',
  },
}

SCSS

$custom: #3359bb;
$custom-light: #7d87d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3359bb",
  "rgb": {
    "r": 51,
    "g": 89,
    "b": 187
  },
  "hsl": {
    "h": 223.235,
    "s": 57.143,
    "l": 46.667
  },
  "oklch": {
    "l": 0.49278,
    "c": 0.16068,
    "h": 265
  },
  "luminance": 0.11436
}

Semantic roles & 50–950 ramp

primary

#3359BB

secondary

#C9B581

accent

#B647E0

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #3359BB

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

Preview Lab → · Contrast checker → · Palette generator →