#3683B1#3683B1

#3683B1 is a mid, moderate cyan. Relative luminance 0.202; OKLCH L 58.3% C 0.103 H 238.5°. Best body text is #000000 at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#3683B1
RGB	rgb(54, 131, 177)
HSL	hsl(202, 53%, 45%)
HSV	hsv(202, 69%, 69%)
CMYK	cmyk(69.5%, 26%, 0%, 30.6%)
CIE-LAB	lab(52.05, -8.49, -31.16)
CIE-LCH	lch(52.05, 32.29, 254.75°)
OKLab	oklab(58.27% -0.0539 -0.0877)
OKLCH	oklch(58.27% 0.103 238.5)
XYZ	xyz(17.5704, 20.1893, 44.5574)
Luminance	0.2019 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3683B1 #B16436

analogous

#36B1A1 #3683B1 #3645B1

triadic

#3683B1 #B13683 #83B136

tetradic

#3683B1 #A136B1 #B16436 #45B136

square

#3683B1 #A136B1 #B16436 #45B136

split-complementary

#3683B1 #B13645 #B1A136

monochromatic

#193E53 #286082 #3683B1 #58A1CC #87BBDA

Accessibility & contrast

On white

4.17

#3683B1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.04

#3683B1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3683B1

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3683B1	#FFFFFF	#000000	##000000
##3683B1	1.00	4.17	5.04	5.04
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.04	21.00	1.00	1.00
##000000	5.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E83B3

Deuteranopia (green-blind)

#5D77B0

Tritanopia (blue-blind)

#008F93

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3683b1;
/* rgb */ color: rgb(54, 131, 177);
/* oklch */ color: oklch(58.3% 0.103 238.5);

Tailwind

colors: {
  custom: {
    50: '#7ca7c8',
    500: '#3683b1',
    950: '#000000',
  },
}

SCSS

$custom: #3683b1;
$custom-light: #7ca7c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3683b1",
  "rgb": {
    "r": 54,
    "g": 131,
    "b": 177
  },
  "hsl": {
    "h": 202.439,
    "s": 53.247,
    "l": 45.294
  },
  "oklch": {
    "l": 0.58266,
    "c": 0.10295,
    "h": 238.5
  },
  "luminance": 0.20191
}

Semantic roles & 50–950 ramp

primary

#3683B1

secondary

#C4997F

accent

#824BDD

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3683B1

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

Preview Lab → · Contrast checker → · Palette generator →