#3681CA#3681CA

#3681CA is a mid, vivid cyan. Relative luminance 0.207; OKLCH L 59.2% C 0.134 H 250.7°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#3681CA
RGB	rgb(54, 129, 202)
HSL	hsl(210, 58%, 50%)
HSV	hsv(210, 73%, 79%)
CMYK	cmyk(73.3%, 36.1%, 0%, 20.8%)
CIE-LAB	lab(52.67, 1.54, -44.48)
CIE-LCH	lch(52.67, 44.51, 271.98°)
OKLab	oklab(59.15% -0.0444 -0.1266)
OKLCH	oklch(59.15% 0.134 250.7)
XYZ	xyz(20.0282, 20.7468, 58.8146)
Luminance	0.2075 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3681CA #CA7F36

analogous

#36CAC9 #3681CA #3637CA

triadic

#3681CA #CA3681 #81CA36

tetradic

#3681CA #C936CA #CA7F36 #37CA36

square

#3681CA #C936CA #CA7F36 #37CA36

split-complementary

#3681CA #CA3637 #CAC936

monochromatic

#1C436A #29629A #3681CA #669FD7 #97BEE4

Accessibility & contrast

On white

4.08

#3681CA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.15

#3681CA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3681CA

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3681CA	#FFFFFF	#000000	##000000
##3681CA	1.00	4.08	5.15	5.15
#FFFFFF	4.08	1.00	21.00	21.00
#000000	5.15	21.00	1.00	1.00
##000000	5.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F85CD

Deuteranopia (green-blind)

#4A77C9

Tritanopia (blue-blind)

#00929C

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3681ca;
/* rgb */ color: rgb(54, 129, 202);
/* oklch */ color: oklch(59.2% 0.134 250.7);

Tailwind

colors: {
  custom: {
    50: '#80a5da',
    500: '#3681ca',
    950: '#000000',
  },
}

SCSS

$custom: #3681ca;
$custom-light: #80a5da;
$custom-dark: #000000;

JSON

{
  "hex": "#3681ca",
  "rgb": {
    "r": 54,
    "g": 129,
    "b": 202
  },
  "hsl": {
    "h": 209.595,
    "s": 58.268,
    "l": 50.196
  },
  "oklch": {
    "l": 0.59153,
    "c": 0.13412,
    "h": 250.7
  },
  "luminance": 0.20749
}

Semantic roles & 50–950 ramp

primary

#3681CA

secondary

#CFAD8D

accent

#9346E1

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3681CA

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

Preview Lab → · Contrast checker → · Palette generator →