#3687BD#3687BD

#3687BD is a mid, moderate cyan. Relative luminance 0.218; OKLCH L 59.8% C 0.113 H 241.6°. Best body text is #000000 at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#3687BD
RGB	rgb(54, 135, 189)
HSL	hsl(204, 56%, 48%)
HSV	hsv(204, 71%, 74%)
CMYK	cmyk(71.4%, 28.6%, 0%, 25.9%)
CIE-LAB	lab(53.80, -6.63, -35.30)
CIE-LCH	lch(53.80, 35.92, 259.37°)
OKLab	oklab(59.83% -0.0539 -0.0997)
OKLCH	oklch(59.83% 0.113 241.6)
XYZ	xyz(19.3671, 21.7842, 51.3183)
Luminance	0.2179 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3687BD #BD6C36

analogous

#36BDB0 #3687BD #3643BD

triadic

#3687BD #BD3687 #87BD36

tetradic

#3687BD #B036BD #BD6C36 #43BD36

square

#3687BD #B036BD #BD6C36 #43BD36

split-complementary

#3687BD #BD3643 #BDB036

monochromatic

#1B435E #28658D #3687BD #5FA4D1 #8FBFDF

Accessibility & contrast

On white

3.92

#3687BD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.36

#3687BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3687BD

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3687BD	#FFFFFF	#000000	##000000
##3687BD	1.00	3.92	5.36	5.36
#FFFFFF	3.92	1.00	21.00	21.00
#000000	5.36	21.00	1.00	1.00
##000000	5.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E88BF

Deuteranopia (green-blind)

#5C7BBC

Tritanopia (blue-blind)

#00949A

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3687bd;
/* rgb */ color: rgb(54, 135, 189);
/* oklch */ color: oklch(59.8% 0.113 241.6);

Tailwind

colors: {
  custom: {
    50: '#7ea9d1',
    500: '#3687bd',
    950: '#000000',
  },
}

SCSS

$custom: #3687bd;
$custom-light: #7ea9d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3687bd",
  "rgb": {
    "r": 54,
    "g": 135,
    "b": 189
  },
  "hsl": {
    "h": 204,
    "s": 55.556,
    "l": 47.647
  },
  "oklch": {
    "l": 0.5983,
    "c": 0.11337,
    "h": 241.6
  },
  "luminance": 0.21786
}

Semantic roles & 50–950 ramp

primary

#3687BD

secondary

#C9A185

accent

#8549DF

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3687BD

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

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