#3690BB#3690BB

#3690BB is a mid, moderate cyan. Relative luminance 0.243; OKLCH L 61.9% C 0.106 H 233.1°. Best body text is #000000 at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#3690BB
RGB	rgb(54, 144, 187)
HSL	hsl(199, 55%, 47%)
HSV	hsv(199, 71%, 73%)
CMYK	cmyk(71.1%, 23%, 0%, 26.7%)
CIE-LAB	lab(56.40, -12.42, -30.10)
CIE-LCH	lch(56.40, 32.56, 247.58°)
OKLab	oklab(61.87% -0.0636 -0.0846)
OKLCH	oklch(61.87% 0.106 233.1)
XYZ	xyz(20.4607, 24.3163, 50.6193)
Luminance	0.2432 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3690BB #BB6136

analogous

#36BBA3 #3690BB #364EBB

triadic

#3690BB #BB3690 #90BB36

tetradic

#3690BB #A336BB #BB6136 #4EBB36

square

#3690BB #A336BB #BB6136 #4EBB36

split-complementary

#3690BB #BB364E #BBA336

monochromatic

#1B475C #286B8C #3690BB #5EABD0 #8DC4DE

Accessibility & contrast

On white

3.58

#3690BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.86

#3690BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3690BB

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3690BB	#FFFFFF	#000000	##000000
##3690BB	1.00	3.58	5.86	5.86
#FFFFFF	3.58	1.00	21.00	21.00
#000000	5.86	21.00	1.00	1.00
##000000	5.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8FBD

Deuteranopia (green-blind)

#6982BA

Tritanopia (blue-blind)

#009B9E

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #3690bb;
/* rgb */ color: rgb(54, 144, 187);
/* oklch */ color: oklch(61.9% 0.106 233.1);

Tailwind

colors: {
  custom: {
    50: '#7eb0cf',
    500: '#3690bb',
    950: '#000000',
  },
}

SCSS

$custom: #3690bb;
$custom-light: #7eb0cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3690bb",
  "rgb": {
    "r": 54,
    "g": 144,
    "b": 187
  },
  "hsl": {
    "h": 199.398,
    "s": 55.187,
    "l": 47.255
  },
  "oklch": {
    "l": 0.61871,
    "c": 0.10583,
    "h": 233.1
  },
  "luminance": 0.24319
}

Semantic roles & 50–950 ramp

primary

#3690BB

secondary

#C99A84

accent

#7A49DF

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #3690BB

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

Preview Lab → · Contrast checker → · Palette generator →