#3D81D3#3D81D3

#3D81D3 is a mid, vivid cyan. Relative luminance 0.214; OKLCH L 59.9% C 0.143 H 254.7°. Best body text is #000000 at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#3D81D3
RGB	rgb(61, 129, 211)
HSL	hsl(213, 63%, 53%)
HSV	hsv(213, 71%, 83%)
CMYK	cmyk(71.1%, 38.9%, 0%, 17.3%)
CIE-LAB	lab(53.38, 5.74, -48.45)
CIE-LCH	lch(53.38, 48.79, 276.76°)
OKLab	oklab(59.93% -0.0377 -0.1381)
OKLCH	oklch(59.93% 0.143 254.7)
XYZ	xyz(21.5283, 21.3934, 64.6101)
Luminance	0.2140 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D81D3 #D38F3D

analogous

#3DCCD3 #3D81D3 #443DD3

triadic

#3D81D3 #D33D81 #81D33D

tetradic

#3D81D3 #D33DCC #D38F3D #3DD344

square

#3D81D3 #D33DCC #D38F3D #3DD344

split-complementary

#3D81D3 #D3443D #CCD33D

monochromatic

#1C467A #2763AC #3D81D3 #6FA1DE #A1C2EA

Accessibility & contrast

On white

3.98

#3D81D3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.28

#3D81D3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3D81D3

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D81D3	#FFFFFF	#000000	##000000
##3D81D3	1.00	3.98	5.28	5.28
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.28	21.00	1.00	1.00
##000000	5.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B87D6

Deuteranopia (green-blind)

#4479D1

Tritanopia (blue-blind)

#0094A0

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #3d81d3;
/* rgb */ color: rgb(61, 129, 211);
/* oklch */ color: oklch(59.9% 0.143 254.7);

Tailwind

colors: {
  custom: {
    50: '#84a5e1',
    500: '#3d81d3',
    950: '#000000',
  },
}

SCSS

$custom: #3d81d3;
$custom-light: #84a5e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3d81d3",
  "rgb": {
    "r": 61,
    "g": 129,
    "b": 211
  },
  "hsl": {
    "h": 212.8,
    "s": 63.025,
    "l": 53.333
  },
  "oklch": {
    "l": 0.59925,
    "c": 0.14316,
    "h": 254.7
  },
  "luminance": 0.21396
}

Semantic roles & 50–950 ramp

primary

#3D81D3

secondary

#D6B996

accent

#9C42E6

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3D81D3

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

Preview Lab → · Contrast checker → · Palette generator →