#3685B8#3685B8

#3685B8 is a mid, moderate cyan. Relative luminance 0.210; OKLCH L 59.1% C 0.109 H 240.6°. Best body text is #000000 at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#3685B8
RGB	rgb(54, 133, 184)
HSL	hsl(204, 55%, 47%)
HSV	hsv(204, 71%, 72%)
CMYK	cmyk(70.7%, 27.7%, 0%, 27.8%)
CIE-LAB	lab(52.97, -7.22, -33.74)
CIE-LCH	lch(52.97, 34.51, 257.93°)
OKLab	oklab(59.1% -0.0536 -0.0952)
OKLCH	oklch(59.1% 0.109 240.6)
XYZ	xyz(18.5572, 21.0180, 48.4170)
Luminance	0.2102 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3685B8 #B86936

analogous

#36B8AA #3685B8 #3644B8

triadic

#3685B8 #B83685 #85B836

tetradic

#3685B8 #AA36B8 #B86936 #44B836

square

#3685B8 #AA36B8 #B86936 #44B836

split-complementary

#3685B8 #B83644 #B8AA36

monochromatic

#1A4159 #286389 #3685B8 #5CA2CF #8BBDDD

Accessibility & contrast

On white

4.04

#3685B8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.20

#3685B8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3685B8

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3685B8	#FFFFFF	#000000	##000000
##3685B8	1.00	4.04	5.20	5.20
#FFFFFF	4.04	1.00	21.00	21.00
#000000	5.20	21.00	1.00	1.00
##000000	5.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D85BA

Deuteranopia (green-blind)

#5C79B7

Tritanopia (blue-blind)

#009297

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3685b8;
/* rgb */ color: rgb(54, 133, 184);
/* oklch */ color: oklch(59.1% 0.109 240.6);

Tailwind

colors: {
  custom: {
    50: '#7da8cd',
    500: '#3685b8',
    950: '#000000',
  },
}

SCSS

$custom: #3685b8;
$custom-light: #7da8cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3685b8",
  "rgb": {
    "r": 54,
    "g": 133,
    "b": 184
  },
  "hsl": {
    "h": 203.538,
    "s": 54.622,
    "l": 46.667
  },
  "oklch": {
    "l": 0.59099,
    "c": 0.10924,
    "h": 240.6
  },
  "luminance": 0.2102
}

Semantic roles & 50–950 ramp

primary

#3685B8

secondary

#C79D82

accent

#844ADE

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3685B8

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

Preview Lab → · Contrast checker → · Palette generator →