#3687AD#3687AD

#3687AD is a mid, moderate cyan. Relative luminance 0.211; OKLCH L 59.0% C 0.097 H 232.1°. Best body text is #000000 at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#3687AD
RGB	rgb(54, 135, 173)
HSL	hsl(199, 52%, 45%)
HSV	hsv(199, 69%, 68%)
CMYK	cmyk(68.8%, 22%, 0%, 32.2%)
CIE-LAB	lab(53.09, -12.13, -27.24)
CIE-LCH	lch(53.09, 29.82, 245.99°)
OKLab	oklab(59.03% -0.0594 -0.0764)
OKLCH	oklch(59.03% 0.097 232.1)
XYZ	xyz(17.7251, 21.1274, 42.6709)
Luminance	0.2113 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3687AD #AD5C36

analogous

#36AD98 #3687AD #364BAD

triadic

#3687AD #AD3687 #87AD36

tetradic

#3687AD #9836AD #AD5C36 #4BAD36

square

#3687AD #9836AD #AD5C36 #4BAD36

split-complementary

#3687AD #AD364B #AD9836

monochromatic

#193E50 #27637E #3687AD #56A5CA #85BED9

Accessibility & contrast

On white

4.02

#3687AD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.23

#3687AD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3687AD

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3687AD	#FFFFFF	#000000	##000000
##3687AD	1.00	4.02	5.23	5.23
#FFFFFF	4.02	1.00	21.00	21.00
#000000	5.23	21.00	1.00	1.00
##000000	5.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7485AF

Deuteranopia (green-blind)

#647AAC

Tritanopia (blue-blind)

#009194

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #3687ad;
/* rgb */ color: rgb(54, 135, 173);
/* oklch */ color: oklch(59.0% 0.097 232.1);

Tailwind

colors: {
  custom: {
    50: '#7baac5',
    500: '#3687ad',
    950: '#000000',
  },
}

SCSS

$custom: #3687ad;
$custom-light: #7baac5;
$custom-dark: #000000;

JSON

{
  "hex": "#3687ad",
  "rgb": {
    "r": 54,
    "g": 135,
    "b": 173
  },
  "hsl": {
    "h": 199.16,
    "s": 52.423,
    "l": 44.51
  },
  "oklch": {
    "l": 0.59034,
    "c": 0.0968,
    "h": 232.1
  },
  "luminance": 0.21129
}

Semantic roles & 50–950 ramp

primary

#3687AD

secondary

#C2937C

accent

#7A4CDC

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #3687AD

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

Preview Lab → · Contrast checker → · Palette generator →