#3688AD#3688AD

#3688AD is a mid, moderate cyan. Relative luminance 0.214; OKLCH L 59.3% C 0.096 H 231.1°. Best body text is #000000 at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#3688AD
RGB	rgb(54, 136, 173)
HSL	hsl(199, 52%, 45%)
HSV	hsv(199, 69%, 68%)
CMYK	cmyk(68.8%, 21.4%, 0%, 32.2%)
CIE-LAB	lab(53.39, -12.69, -26.77)
CIE-LCH	lch(53.39, 29.63, 244.63°)
OKLab	oklab(59.28% -0.0605 -0.0751)
OKLCH	oklch(59.28% 0.096 231.1)
XYZ	xyz(17.8653, 21.4078, 42.7176)
Luminance	0.2141 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3688AD #AD5B36

analogous

#36AD96 #3688AD #364DAD

triadic

#3688AD #AD3688 #88AD36

tetradic

#3688AD #9636AD #AD5B36 #4DAD36

square

#3688AD #9636AD #AD5B36 #4DAD36

split-complementary

#3688AD #AD364D #AD9636

monochromatic

#193F50 #27637E #3688AD #56A6CA #85BFD9

Accessibility & contrast

On white

3.98

#3688AD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.28

#3688AD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3688AD

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3688AD	#FFFFFF	#000000	##000000
##3688AD	1.00	3.98	5.28	5.28
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.28	21.00	1.00	1.00
##000000	5.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7586AF

Deuteranopia (green-blind)

#657AAC

Tritanopia (blue-blind)

#009294

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #3688ad;
/* rgb */ color: rgb(54, 136, 173);
/* oklch */ color: oklch(59.3% 0.096 231.1);

Tailwind

colors: {
  custom: {
    50: '#7baac5',
    500: '#3688ad',
    950: '#000000',
  },
}

SCSS

$custom: #3688ad;
$custom-light: #7baac5;
$custom-dark: #000000;

JSON

{
  "hex": "#3688ad",
  "rgb": {
    "r": 54,
    "g": 136,
    "b": 173
  },
  "hsl": {
    "h": 198.655,
    "s": 52.423,
    "l": 44.51
  },
  "oklch": {
    "l": 0.59277,
    "c": 0.09638,
    "h": 231.1
  },
  "luminance": 0.2141
}

Semantic roles & 50–950 ramp

primary

#3688AD

secondary

#C2927C

accent

#794CDC

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #3688AD

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

Preview Lab → · Contrast checker → · Palette generator →