#3688B7#3688B7

#3688B7 is a mid, moderate cyan. Relative luminance 0.218; OKLCH L 59.8% C 0.106 H 237.6°. Best body text is #000000 at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#3688B7
RGB	rgb(54, 136, 183)
HSL	hsl(202, 54%, 46%)
HSV	hsv(202, 70%, 72%)
CMYK	cmyk(70.5%, 25.7%, 0%, 28.2%)
CIE-LAB	lab(53.82, -9.28, -31.83)
CIE-LCH	lch(53.82, 33.16, 253.74°)
OKLab	oklab(59.76% -0.0569 -0.0897)
OKLCH	oklch(59.76% 0.106 237.6)
XYZ	xyz(18.8694, 21.8094, 48.0057)
Luminance	0.2181 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3688B7 #B76536

analogous

#36B7A6 #3688B7 #3648B7

triadic

#3688B7 #B73688 #88B736

tetradic

#3688B7 #A636B7 #B76536 #48B736

square

#3688B7 #A636B7 #B76536 #48B736

split-complementary

#3688B7 #B73648 #B7A636

monochromatic

#1A4258 #286588 #3688B7 #5BA5CF #8BBFDD

Accessibility & contrast

On white

3.92

#3688B7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.36

#3688B7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3688B7

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3688B7	#FFFFFF	#000000	##000000
##3688B7	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)

#7288B9

Deuteranopia (green-blind)

#607BB6

Tritanopia (blue-blind)

#009498

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3688b7;
/* rgb */ color: rgb(54, 136, 183);
/* oklch */ color: oklch(59.8% 0.106 237.6);

Tailwind

colors: {
  custom: {
    50: '#7daacc',
    500: '#3688b7',
    950: '#000000',
  },
}

SCSS

$custom: #3688b7;
$custom-light: #7daacc;
$custom-dark: #000000;

JSON

{
  "hex": "#3688b7",
  "rgb": {
    "r": 54,
    "g": 136,
    "b": 183
  },
  "hsl": {
    "h": 201.86,
    "s": 54.43,
    "l": 46.471
  },
  "oklch": {
    "l": 0.59762,
    "c": 0.1062,
    "h": 237.6
  },
  "luminance": 0.21811
}

Semantic roles & 50–950 ramp

primary

#3688B7

secondary

#C79B82

accent

#804ADE

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3688B7

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

Preview Lab → · Contrast checker → · Palette generator →