#3687BA#3687BA

#3687BA is a mid, moderate cyan. Relative luminance 0.217; OKLCH L 59.7% C 0.110 H 240.1°. Best body text is #000000 at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#3687BA
RGB	rgb(54, 135, 186)
HSL	hsl(203, 55%, 47%)
HSV	hsv(203, 71%, 73%)
CMYK	cmyk(71%, 27.4%, 0%, 27.1%)
CIE-LAB	lab(53.66, -7.67, -33.81)
CIE-LCH	lch(53.66, 34.67, 257.21°)
OKLab	oklab(59.68% -0.0549 -0.0954)
OKLCH	oklch(59.68% 0.11 240.1)
XYZ	xyz(19.0448, 21.6553, 49.6210)
Luminance	0.2166 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3687BA #BA6936

analogous

#36BAAB #3687BA #3645BA

triadic

#3687BA #BA3687 #87BA36

tetradic

#3687BA #AB36BA #BA6936 #45BA36

square

#3687BA #AB36BA #BA6936 #45BA36

split-complementary

#3687BA #BA3645 #BAAB36

monochromatic

#1A425B #28658B #3687BA #5DA4D0 #8DBEDE

Accessibility & contrast

On white

3.94

#3687BA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.33

#3687BA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3687BA

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3687BA	#FFFFFF	#000000	##000000
##3687BA	1.00	3.94	5.33	5.33
#FFFFFF	3.94	1.00	21.00	21.00
#000000	5.33	21.00	1.00	1.00
##000000	5.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F87BC

Deuteranopia (green-blind)

#5D7BB9

Tritanopia (blue-blind)

#009499

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #3687ba;
/* rgb */ color: rgb(54, 135, 186);
/* oklch */ color: oklch(59.7% 0.110 240.1);

Tailwind

colors: {
  custom: {
    50: '#7da9cf',
    500: '#3687ba',
    950: '#000000',
  },
}

SCSS

$custom: #3687ba;
$custom-light: #7da9cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3687ba",
  "rgb": {
    "r": 54,
    "g": 135,
    "b": 186
  },
  "hsl": {
    "h": 203.182,
    "s": 55,
    "l": 47.059
  },
  "oklch": {
    "l": 0.59676,
    "c": 0.11006,
    "h": 240.1
  },
  "luminance": 0.21657
}

Semantic roles & 50–950 ramp

primary

#3687BA

secondary

#C89E84

accent

#8349DE

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3687BA

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

Preview Lab → · Contrast checker → · Palette generator →