#3688AB#3688AB

#3688AB is a mid, moderate cyan. Relative luminance 0.213; OKLCH L 59.2% C 0.095 H 229.7°. Best body text is #000000 at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#3688AB
RGB	rgb(54, 136, 171)
HSL	hsl(198, 52%, 44%)
HSV	hsv(198, 68%, 67%)
CMYK	cmyk(68.4%, 20.5%, 0%, 32.9%)
CIE-LAB	lab(53.31, -13.37, -25.75)
CIE-LCH	lch(53.31, 29.01, 242.57°)
OKLab	oklab(59.18% -0.0612 -0.0721)
OKLCH	oklch(59.18% 0.095 229.7)
XYZ	xyz(17.6732, 21.3309, 41.7060)
Luminance	0.2133 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3688AB #AB5936

analogous

#36AB94 #3688AB #364EAB

triadic

#3688AB #AB3688 #88AB36

tetradic

#3688AB #9436AB #AB5936 #4EAB36

square

#3688AB #9436AB #AB5936 #4EAB36

split-complementary

#3688AB #AB364E #AB9436

monochromatic

#193E4E #27637C #3688AB #55A6C9 #83BFD8

Accessibility & contrast

On white

3.99

#3688AB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.27

#3688AB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3688AB

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3688AB	#FFFFFF	#000000	##000000
##3688AB	1.00	3.99	5.27	5.27
#FFFFFF	3.99	1.00	21.00	21.00
#000000	5.27	21.00	1.00	1.00
##000000	5.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7686AD

Deuteranopia (green-blind)

#667AAB

Tritanopia (blue-blind)

#009294

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #3688ab;
/* rgb */ color: rgb(54, 136, 171);
/* oklch */ color: oklch(59.2% 0.095 229.7);

Tailwind

colors: {
  custom: {
    50: '#7baac4',
    500: '#3688ab',
    950: '#000000',
  },
}

SCSS

$custom: #3688ab;
$custom-light: #7baac4;
$custom-dark: #000000;

JSON

{
  "hex": "#3688ab",
  "rgb": {
    "r": 54,
    "g": 136,
    "b": 171
  },
  "hsl": {
    "h": 197.949,
    "s": 52,
    "l": 44.118
  },
  "oklch": {
    "l": 0.59183,
    "c": 0.09459,
    "h": 229.7
  },
  "luminance": 0.21333
}

Semantic roles & 50–950 ramp

primary

#3688AB

secondary

#C2907B

accent

#774CDB

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #3688AB

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

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