#3367B3#3367B3

#3367B3 is a mid, vivid blue. Relative luminance 0.137; OKLCH L 51.7% C 0.133 H 258.0°. Best body text is #FFFFFF at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#3367B3
RGB	rgb(51, 103, 179)
HSL	hsl(216, 56%, 45%)
HSV	hsv(216, 72%, 70%)
CMYK	cmyk(71.5%, 42.5%, 0%, 29.8%)
CIE-LAB	lab(43.74, 8.75, -45.45)
CIE-LCH	lch(43.74, 46.28, 280.89°)
OKLab	oklab(51.75% -0.0275 -0.1298)
OKLCH	oklch(51.75% 0.133 258)
XYZ	xyz(14.3492, 13.6574, 44.5190)
Luminance	0.1366 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3367B3 #B37F33

analogous

#33A7B3 #3367B3 #3F33B3

triadic

#3367B3 #B33367 #67B333

tetradic

#3367B3 #B333A7 #B37F33 #33B33F

square

#3367B3 #B333A7 #B37F33 #33B33F

split-complementary

#3367B3 #B33F33 #A7B333

monochromatic

#183054 #254C83 #3367B3 #5586CE #84A8DC

Accessibility & contrast

On white

5.63

#3367B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.73

#3367B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3367B3

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3367B3	#FFFFFF	#000000	##FFFFFF
##3367B3	1.00	5.63	3.73	5.63
#FFFFFF	5.63	1.00	21.00	1.00
#000000	3.73	21.00	1.00	21.00
##FFFFFF	5.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#436EB6

Deuteranopia (green-blind)

#2D62B1

Tritanopia (blue-blind)

#007984

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3367b3;
/* rgb */ color: rgb(51, 103, 179);
/* oklch */ color: oklch(51.7% 0.133 258.0);

Tailwind

colors: {
  custom: {
    50: '#7a91ca',
    500: '#3367b3',
    950: '#000000',
  },
}

SCSS

$custom: #3367b3;
$custom-light: #7a91ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3367b3",
  "rgb": {
    "r": 51,
    "g": 103,
    "b": 179
  },
  "hsl": {
    "h": 215.625,
    "s": 55.652,
    "l": 45.098
  },
  "oklch": {
    "l": 0.51747,
    "c": 0.13273,
    "h": 258
  },
  "luminance": 0.13659
}

Semantic roles & 50–950 ramp

primary

#3367B3

secondary

#C6A87C

accent

#A249DF

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #3367B3

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

Preview Lab → · Contrast checker → · Palette generator →