#3D73BF#3D73BF

#3D73BF is a mid, vivid blue. Relative luminance 0.170; OKLCH L 55.6% C 0.132 H 257.3°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#3D73BF
RGB	rgb(61, 115, 191)
HSL	hsl(215, 52%, 49%)
HSV	hsv(215, 68%, 75%)
CMYK	cmyk(68.1%, 39.8%, 0%, 25.1%)
CIE-LAB	lab(48.28, 7.15, -45.15)
CIE-LCH	lch(48.28, 45.71, 279.00°)
OKLab	oklab(55.6% -0.029 -0.1286)
OKLCH	oklch(55.6% 0.132 257.3)
XYZ	xyz(17.4558, 17.0134, 51.6441)
Luminance	0.1701 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D73BF #BF893D

analogous

#3DB4BF #3D73BF #483DBF

triadic

#3D73BF #BF3D73 #73BF3D

tetradic

#3D73BF #BF3DB4 #BF893D #3DBF48

square

#3D73BF #BF3DB4 #BF893D #3DBF48

split-complementary

#3D73BF #BF483D #B4BF3D

monochromatic

#1F3B62 #2E5791 #3D73BF #6A94CF #98B5DE

Accessibility & contrast

On white

4.77

#3D73BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#3D73BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D73BF

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D73BF	#FFFFFF	#000000	##FFFFFF
##3D73BF	1.00	4.77	4.40	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5079C2

Deuteranopia (green-blind)

#3C6DBD

Tritanopia (blue-blind)

#008590

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3d73bf;
/* rgb */ color: rgb(61, 115, 191);
/* oklch */ color: oklch(55.6% 0.132 257.3);

Tailwind

colors: {
  custom: {
    50: '#819ad3',
    500: '#3d73bf',
    950: '#000000',
  },
}

SCSS

$custom: #3d73bf;
$custom-light: #819ad3;
$custom-dark: #000000;

JSON

{
  "hex": "#3d73bf",
  "rgb": {
    "r": 61,
    "g": 115,
    "b": 191
  },
  "hsl": {
    "h": 215.077,
    "s": 51.587,
    "l": 49.412
  },
  "oklch": {
    "l": 0.55599,
    "c": 0.13186,
    "h": 257.3
  },
  "luminance": 0.17015
}

Semantic roles & 50–950 ramp

primary

#3D73BF

secondary

#CAB18E

accent

#A04DDB

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3D73BF

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

Preview Lab → · Contrast checker → · Palette generator →