#3683B3#3683B3

#3683B3 is a mid, moderate cyan. Relative luminance 0.203; OKLCH L 58.4% C 0.105 H 239.6°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#3683B3
RGB	rgb(54, 131, 179)
HSL	hsl(203, 54%, 46%)
HSV	hsv(203, 70%, 70%)
CMYK	cmyk(69.8%, 26.8%, 0%, 29.8%)
CIE-LAB	lab(52.14, -7.80, -32.17)
CIE-LCH	lch(52.14, 33.10, 256.37°)
OKLab	oklab(58.37% -0.0532 -0.0907)
OKLCH	oklch(58.37% 0.105 239.6)
XYZ	xyz(17.7712, 20.2696, 45.6149)
Luminance	0.2027 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3683B3 #B36636

analogous

#36B3A4 #3683B3 #3644B3

triadic

#3683B3 #B33683 #83B336

tetradic

#3683B3 #A436B3 #B36636 #44B336

square

#3683B3 #A436B3 #B36636 #44B336

split-complementary

#3683B3 #B33644 #B3A436

monochromatic

#1A3E55 #286184 #3683B3 #59A1CD #88BBDB

Accessibility & contrast

On white

4.15

#3683B3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#3683B3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3683B3

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3683B3	#FFFFFF	#000000	##000000
##3683B3	1.00	4.15	5.05	5.05
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.05	21.00	1.00	1.00
##000000	5.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D83B5

Deuteranopia (green-blind)

#5C77B2

Tritanopia (blue-blind)

#008F94

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3683b3;
/* rgb */ color: rgb(54, 131, 179);
/* oklch */ color: oklch(58.4% 0.105 239.6);

Tailwind

colors: {
  custom: {
    50: '#7ca6ca',
    500: '#3683b3',
    950: '#000000',
  },
}

SCSS

$custom: #3683b3;
$custom-light: #7ca6ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3683b3",
  "rgb": {
    "r": 54,
    "g": 131,
    "b": 179
  },
  "hsl": {
    "h": 203.04,
    "s": 53.648,
    "l": 45.686
  },
  "oklch": {
    "l": 0.58367,
    "c": 0.10511,
    "h": 239.6
  },
  "luminance": 0.20272
}

Semantic roles & 50–950 ramp

primary

#3683B3

secondary

#C59A80

accent

#834BDD

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3683B3

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

Preview Lab → · Contrast checker → · Palette generator →