#3683B2#3683B2

#3683B2 is a mid, moderate cyan. Relative luminance 0.202; OKLCH L 58.3% C 0.104 H 239.0°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#3683B2
RGB	rgb(54, 131, 178)
HSL	hsl(203, 53%, 45%)
HSV	hsv(203, 70%, 70%)
CMYK	cmyk(69.7%, 26.4%, 0%, 30.2%)
CIE-LAB	lab(52.10, -8.15, -31.66)
CIE-LCH	lch(52.10, 32.69, 255.57°)
OKLab	oklab(58.32% -0.0535 -0.0892)
OKLCH	oklch(58.32% 0.104 239)
XYZ	xyz(17.6704, 20.2293, 45.0842)
Luminance	0.2023 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3683B2 #B26536

analogous

#36B2A3 #3683B2 #3645B2

triadic

#3683B2 #B23683 #83B236

tetradic

#3683B2 #A336B2 #B26536 #45B236

square

#3683B2 #A336B2 #B26536 #45B236

split-complementary

#3683B2 #B23645 #B2A336

monochromatic

#1A3E54 #286083 #3683B2 #59A1CD #88BBDB

Accessibility & contrast

On white

4.16

#3683B2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#3683B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3683B2

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3683B2	#FFFFFF	#000000	##000000
##3683B2	1.00	4.16	5.05	5.05
#FFFFFF	4.16	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)

#6D83B4

Deuteranopia (green-blind)

#5C77B1

Tritanopia (blue-blind)

#008F93

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3683b2;
/* rgb */ color: rgb(54, 131, 178);
/* oklch */ color: oklch(58.3% 0.104 239.0);

Tailwind

colors: {
  custom: {
    50: '#7ca6c9',
    500: '#3683b2',
    950: '#000000',
  },
}

SCSS

$custom: #3683b2;
$custom-light: #7ca6c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3683b2",
  "rgb": {
    "r": 54,
    "g": 131,
    "b": 178
  },
  "hsl": {
    "h": 202.742,
    "s": 53.448,
    "l": 45.49
  },
  "oklch": {
    "l": 0.58317,
    "c": 0.10402,
    "h": 239
  },
  "luminance": 0.20231
}

Semantic roles & 50–950 ramp

primary

#3683B2

secondary

#C5997F

accent

#824BDD

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3683B2

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

Preview Lab → · Contrast checker → · Palette generator →