#3D81ED#3D81ED

#3D81ED is a mid, vivid blue. Relative luminance 0.228; OKLCH L 61.6% C 0.177 H 259.4°. Best body text is #000000 at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#3D81ED
RGB	rgb(61, 129, 237)
HSL	hsl(217, 83%, 58%)
HSV	hsv(217, 74%, 93%)
CMYK	cmyk(74.3%, 45.6%, 0%, 7.1%)
CIE-LAB	lab(54.87, 15.12, -60.65)
CIE-LCH	lch(54.87, 62.50, 284.00°)
OKLab	oklab(61.56% -0.0326 -0.1739)
OKLCH	oklch(61.56% 0.177 259.4)
XYZ	xyz(25.0552, 22.8042, 83.1855)
Luminance	0.2281 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D81ED #EDA93D

analogous

#3DD9ED #3D81ED #513DED

triadic

#3D81ED #ED3D81 #81ED3D

tetradic

#3D81ED #ED3DD9 #EDA93D #3DED51

square

#3D81ED #ED3DD9 #EDA93D #3DED51

split-complementary

#3D81ED #ED513D #D9ED3D

monochromatic

#0F47A1 #1460D9 #3D81ED #75A5F2 #ADCAF7

Accessibility & contrast

On white

3.78

#3D81ED on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.56

#3D81ED on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3D81ED

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D81ED	#FFFFFF	#000000	##000000
##3D81ED	1.00	3.78	5.56	5.56
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.56	21.00	1.00	1.00
##000000	5.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#488CF1

Deuteranopia (green-blind)

#1E7CEB

Tritanopia (blue-blind)

#009BAB

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #3d81ed;
/* rgb */ color: rgb(61, 129, 237);
/* oklch */ color: oklch(61.6% 0.177 259.4);

Tailwind

colors: {
  custom: {
    50: '#89a4f3',
    500: '#3d81ed',
    950: '#000000',
  },
}

SCSS

$custom: #3d81ed;
$custom-light: #89a4f3;
$custom-dark: #000000;

JSON

{
  "hex": "#3d81ed",
  "rgb": {
    "r": 61,
    "g": 129,
    "b": 237
  },
  "hsl": {
    "h": 216.818,
    "s": 83.019,
    "l": 58.431
  },
  "oklch": {
    "l": 0.61564,
    "c": 0.17696,
    "h": 259.4
  },
  "luminance": 0.22807
}

Semantic roles & 50–950 ramp

primary

#3D81ED

secondary

#E6CBA0

accent

#AB2EF9

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0D0F17

muted

#7E7F85

Preview Lab

Preview with #3D81ED

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

Preview Lab → · Contrast checker → · Palette generator →