#3667B9#3667B9

#3667B9 is a mid, vivid blue. Relative luminance 0.140; OKLCH L 52.3% C 0.140 H 260.1°. Best body text is #FFFFFF at 5.53:1 contrast (WCAG AA passes).

Color values

HEX	#3667B9
RGB	rgb(54, 103, 185)
HSL	hsl(218, 55%, 47%)
HSV	hsv(218, 71%, 73%)
CMYK	cmyk(70.8%, 44.3%, 0%, 27.5%)
CIE-LAB	lab(44.21, 11.41, -48.18)
CIE-LCH	lch(44.21, 49.51, 283.33°)
OKLab	oklab(52.26% -0.0241 -0.1378)
OKLCH	oklch(52.26% 0.14 260.1)
XYZ	xyz(15.1254, 13.9860, 47.7920)
Luminance	0.1399 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3667B9 #B98836

analogous

#36A9B9 #3667B9 #4636B9

triadic

#3667B9 #B93667 #67B936

tetradic

#3667B9 #B936A9 #B98836 #36B946

square

#3667B9 #B936A9 #B98836 #36B946

split-complementary

#3667B9 #B94636 #A9B936

monochromatic

#1A325A #284D8A #3667B9 #5D88D0 #8CAADD

Accessibility & contrast

On white

5.53

#3667B9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.80

#3667B9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3667B9

5.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3667B9	#FFFFFF	#000000	##FFFFFF
##3667B9	1.00	5.53	3.80	5.53
#FFFFFF	5.53	1.00	21.00	1.00
#000000	3.80	21.00	1.00	21.00
##FFFFFF	5.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F6FBC

Deuteranopia (green-blind)

#2663B7

Tritanopia (blue-blind)

#007A87

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3667b9;
/* rgb */ color: rgb(54, 103, 185);
/* oklch */ color: oklch(52.3% 0.140 260.1);

Tailwind

colors: {
  custom: {
    50: '#7d91ce',
    500: '#3667b9',
    950: '#000000',
  },
}

SCSS

$custom: #3667b9;
$custom-light: #7d91ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3667b9",
  "rgb": {
    "r": 54,
    "g": 103,
    "b": 185
  },
  "hsl": {
    "h": 217.557,
    "s": 54.812,
    "l": 46.863
  },
  "oklch": {
    "l": 0.52262,
    "c": 0.13992,
    "h": 260.1
  },
  "luminance": 0.13988
}

Semantic roles & 50–950 ramp

primary

#3667B9

secondary

#C8AE83

accent

#A74ADE

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3667B9

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

Preview Lab → · Contrast checker → · Palette generator →