#3691BC#3691BC

#3691BC is a light, moderate cyan. Relative luminance 0.247; OKLCH L 62.2% C 0.106 H 232.8°. Best body text is #000000 at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#3691BC
RGB	rgb(54, 145, 188)
HSL	hsl(199, 55%, 47%)
HSV	hsv(199, 71%, 74%)
CMYK	cmyk(71.3%, 22.9%, 0%, 26.3%)
CIE-LAB	lab(56.75, -12.64, -30.14)
CIE-LCH	lch(56.75, 32.68, 247.25°)
OKLab	oklab(62.16% -0.0642 -0.0847)
OKLCH	oklch(62.16% 0.106 232.8)
XYZ	xyz(20.7202, 24.6636, 51.2357)
Luminance	0.2467 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3691BC #BC6136

analogous

#36BCA4 #3691BC #364EBC

triadic

#3691BC #BC3691 #91BC36

tetradic

#3691BC #A436BC #BC6136 #4EBC36

square

#3691BC #A436BC #BC6136 #4EBC36

split-complementary

#3691BC #BC364E #BCA436

monochromatic

#1B485D #286C8C #3691BC #5EACD1 #8EC5DF

Accessibility & contrast

On white

3.54

#3691BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.93

#3691BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3691BC

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3691BC	#FFFFFF	#000000	##000000
##3691BC	1.00	3.54	5.93	5.93
#FFFFFF	3.54	1.00	21.00	21.00
#000000	5.93	21.00	1.00	1.00
##000000	5.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C8FBE

Deuteranopia (green-blind)

#6982BB

Tritanopia (blue-blind)

#009D9F

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #3691bc;
/* rgb */ color: rgb(54, 145, 188);
/* oklch */ color: oklch(62.2% 0.106 232.8);

Tailwind

colors: {
  custom: {
    50: '#7eb1d0',
    500: '#3691bc',
    950: '#000000',
  },
}

SCSS

$custom: #3691bc;
$custom-light: #7eb1d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3691bc",
  "rgb": {
    "r": 54,
    "g": 145,
    "b": 188
  },
  "hsl": {
    "h": 199.254,
    "s": 55.372,
    "l": 47.451
  },
  "oklch": {
    "l": 0.62158,
    "c": 0.1063,
    "h": 232.8
  },
  "luminance": 0.24666
}

Semantic roles & 50–950 ramp

primary

#3691BC

secondary

#C99B85

accent

#7949DF

background

#F8FAFC

surface

#EFF5F9

border

#CACFD2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #3691BC

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

Preview Lab → · Contrast checker → · Palette generator →