#3D81DB#3D81DB

#3D81DB is a mid, vivid cyan. Relative luminance 0.218; OKLCH L 60.4% C 0.154 H 256.5°. Best body text is #000000 at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#3D81DB
RGB	rgb(61, 129, 219)
HSL	hsl(214, 69%, 55%)
HSV	hsv(214, 72%, 86%)
CMYK	cmyk(72.1%, 41.1%, 0%, 14.1%)
CIE-LAB	lab(53.82, 8.62, -52.26)
CIE-LCH	lch(53.82, 52.96, 279.36°)
OKLab	oklab(60.41% -0.036 -0.1493)
OKLCH	oklch(60.41% 0.154 256.5)
XYZ	xyz(22.5562, 21.8046, 70.0240)
Luminance	0.2181 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D81DB #DB973D

analogous

#3DD0DB #3D81DB #483DDB

triadic

#3D81DB #DB3D81 #81DB3D

tetradic

#3D81DB #DB3DD0 #DB973D #3DDB48

square

#3D81DB #DB3DD0 #DB973D #3DDB48

split-complementary

#3D81DB #DB483D #D0DB3D

monochromatic

#194785 #2263B9 #3D81DB #71A3E5 #A4C4EE

Accessibility & contrast

On white

3.92

#3D81DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.36

#3D81DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3D81DB

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D81DB	#FFFFFF	#000000	##000000
##3D81DB	1.00	3.92	5.36	5.36
#FFFFFF	3.92	1.00	21.00	21.00
#000000	5.36	21.00	1.00	1.00
##000000	5.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5689DF

Deuteranopia (green-blind)

#3C7AD9

Tritanopia (blue-blind)

#0096A3

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3d81db;
/* rgb */ color: rgb(61, 129, 219);
/* oklch */ color: oklch(60.4% 0.154 256.5);

Tailwind

colors: {
  custom: {
    50: '#86a5e7',
    500: '#3d81db',
    950: '#000000',
  },
}

SCSS

$custom: #3d81db;
$custom-light: #86a5e7;
$custom-dark: #000000;

JSON

{
  "hex": "#3d81db",
  "rgb": {
    "r": 61,
    "g": 129,
    "b": 219
  },
  "hsl": {
    "h": 214.177,
    "s": 68.696,
    "l": 54.902
  },
  "oklch": {
    "l": 0.60412,
    "c": 0.15354,
    "h": 256.5
  },
  "luminance": 0.21807
}

Semantic roles & 50–950 ramp

primary

#3D81DB

secondary

#DBBF99

accent

#A03CEC

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0D0F16

muted

#7D7F84

Preview Lab

Preview with #3D81DB

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

Preview Lab → · Contrast checker → · Palette generator →