#3681DA#3681DA

#3681DA is a mid, vivid cyan. Relative luminance 0.215; OKLCH L 60.1% C 0.154 H 254.8°. Best body text is #000000 at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#3681DA
RGB	rgb(54, 129, 218)
HSL	hsl(213, 69%, 53%)
HSV	hsv(213, 75%, 85%)
CMYK	cmyk(75.2%, 40.8%, 0%, 14.5%)
CIE-LAB	lab(53.54, 7.36, -52.15)
CIE-LCH	lch(53.54, 52.67, 278.03°)
OKLab	oklab(60.11% -0.0406 -0.149)
OKLCH	oklch(60.11% 0.154 254.8)
XYZ	xyz(22.0218, 21.5442, 69.3139)
Luminance	0.2155 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3681DA #DA8F36

analogous

#36D3DA #3681DA #3D36DA

triadic

#3681DA #DA3681 #81DA36

tetradic

#3681DA #DA36D3 #DA8F36 #36DA3D

square

#3681DA #DA36D3 #DA8F36 #36DA3D

split-complementary

#3681DA #DA3D36 #D3DA36

monochromatic

#17467E #2163B2 #3681DA #6AA1E4 #9DC2ED

Accessibility & contrast

On white

3.96

#3681DA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.31

#3681DA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3681DA

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3681DA	#FFFFFF	#000000	##000000
##3681DA	1.00	3.96	5.31	5.31
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.31	21.00	1.00	1.00
##000000	5.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5688DE

Deuteranopia (green-blind)

#3A79D8

Tritanopia (blue-blind)

#0096A3

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #3681da;
/* rgb */ color: rgb(54, 129, 218);
/* oklch */ color: oklch(60.1% 0.154 254.8);

Tailwind

colors: {
  custom: {
    50: '#83a5e6',
    500: '#3681da',
    950: '#000000',
  },
}

SCSS

$custom: #3681da;
$custom-light: #83a5e6;
$custom-dark: #000000;

JSON

{
  "hex": "#3681da",
  "rgb": {
    "r": 54,
    "g": 129,
    "b": 218
  },
  "hsl": {
    "h": 212.561,
    "s": 68.908,
    "l": 53.333
  },
  "oklch": {
    "l": 0.60114,
    "c": 0.15448,
    "h": 254.8
  },
  "luminance": 0.21547
}

Semantic roles & 50–950 ramp

primary

#3681DA

secondary

#D9B993

accent

#9B3CEC

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0C0F16

muted

#7D7F84

Preview Lab

Preview with #3681DA

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

Preview Lab → · Contrast checker → · Palette generator →