#3699B3#3699B3

#3699B3 is a light, moderate cyan. Relative luminance 0.268; OKLCH L 63.7% C 0.097 H 218.8°. Best body text is #000000 at 6.36:1 contrast (WCAG AA passes).

Color values

HEX	#3699B3
RGB	rgb(54, 153, 179)
HSL	hsl(192, 54%, 46%)
HSV	hsv(192, 70%, 70%)
CMYK	cmyk(69.8%, 14.5%, 0%, 29.8%)
CIE-LAB	lab(58.81, -19.95, -21.86)
CIE-LCH	lch(58.81, 29.59, 227.61°)
OKLab	oklab(63.69% -0.0758 -0.061)
OKLCH	oklch(63.69% 0.097 218.8)
XYZ	xyz(21.0459, 26.8190, 46.7065)
Luminance	0.2682 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3699B3 #B35036

analogous

#36B38E #3699B3 #365AB3

triadic

#3699B3 #B33699 #99B336

tetradic

#3699B3 #8E36B3 #B35036 #5AB336

square

#3699B3 #8E36B3 #B35036 #5AB336

split-complementary

#3699B3 #B3365A #B38E36

monochromatic

#1A4955 #287184 #3699B3 #59B5CD #88CADB

Accessibility & contrast

On white

3.30

#3699B3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.36

#3699B3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3699B3

6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3699B3	#FFFFFF	#000000	##000000
##3699B3	1.00	3.30	6.36	6.36
#FFFFFF	3.30	1.00	21.00	21.00
#000000	6.36	21.00	1.00	1.00
##000000	6.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8995B4

Deuteranopia (green-blind)

#7788B3

Tritanopia (blue-blind)

#00A2A1

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #3699b3;
/* rgb */ color: rgb(54, 153, 179);
/* oklch */ color: oklch(63.7% 0.097 218.8);

Tailwind

colors: {
  custom: {
    50: '#7db7c9',
    500: '#3699b3',
    950: '#000000',
  },
}

SCSS

$custom: #3699b3;
$custom-light: #7db7c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3699b3",
  "rgb": {
    "r": 54,
    "g": 153,
    "b": 179
  },
  "hsl": {
    "h": 192.48,
    "s": 53.648,
    "l": 45.686
  },
  "oklch": {
    "l": 0.63687,
    "c": 0.09727,
    "h": 218.8
  },
  "luminance": 0.26821
}

Semantic roles & 50–950 ramp

primary

#3699B3

secondary

#C58E80

accent

#694BDD

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #3699B3

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

Preview Lab → · Contrast checker → · Palette generator →