#3687BE#3687BE

#3687BE is a mid, moderate cyan. Relative luminance 0.218; OKLCH L 59.9% C 0.115 H 242.1°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#3687BE
RGB	rgb(54, 135, 190)
HSL	hsl(204, 56%, 48%)
HSV	hsv(204, 72%, 75%)
CMYK	cmyk(71.6%, 28.9%, 0%, 25.5%)
CIE-LAB	lab(53.84, -6.28, -35.80)
CIE-LCH	lch(53.84, 36.35, 260.06°)
OKLab	oklab(59.88% -0.0536 -0.1012)
OKLCH	oklch(59.88% 0.115 242.1)
XYZ	xyz(19.4760, 21.8277, 51.8920)
Luminance	0.2183 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3687BE #BE6D36

analogous

#36BEB1 #3687BE #3643BE

triadic

#3687BE #BE3687 #87BE36

tetradic

#3687BE #B136BE #BE6D36 #43BE36

square

#3687BE #B136BE #BE6D36 #43BE36

split-complementary

#3687BE #BE3643 #BEB136

monochromatic

#1B435F #28658E #3687BE #60A4D2 #8FBFDF

Accessibility & contrast

On white

3.91

#3687BE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.37

#3687BE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3687BE

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3687BE	#FFFFFF	#000000	##000000
##3687BE	1.00	3.91	5.37	5.37
#FFFFFF	3.91	1.00	21.00	21.00
#000000	5.37	21.00	1.00	1.00
##000000	5.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E88C0

Deuteranopia (green-blind)

#5B7BBD

Tritanopia (blue-blind)

#00959A

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3687be;
/* rgb */ color: rgb(54, 135, 190);
/* oklch */ color: oklch(59.9% 0.115 242.1);

Tailwind

colors: {
  custom: {
    50: '#7ea9d2',
    500: '#3687be',
    950: '#000000',
  },
}

SCSS

$custom: #3687be;
$custom-light: #7ea9d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3687be",
  "rgb": {
    "r": 54,
    "g": 135,
    "b": 190
  },
  "hsl": {
    "h": 204.265,
    "s": 55.738,
    "l": 47.843
  },
  "oklch": {
    "l": 0.59883,
    "c": 0.1145,
    "h": 242.1
  },
  "luminance": 0.2183
}

Semantic roles & 50–950 ramp

primary

#3687BE

secondary

#CAA186

accent

#8649DF

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3687BE

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

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