#3A73CB#3A73CB

#3A73CB is a mid, vivid blue. Relative luminance 0.175; OKLCH L 56.2% C 0.149 H 258.9°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#3A73CB
RGB	rgb(58, 115, 203)
HSL	hsl(216, 58%, 51%)
HSV	hsv(216, 71%, 80%)
CMYK	cmyk(71.4%, 43.3%, 0%, 20.4%)
CIE-LAB	lab(48.85, 11.04, -51.13)
CIE-LCH	lch(48.85, 52.31, 282.18°)
OKLab	oklab(56.23% -0.0287 -0.1462)
OKLCH	oklch(56.23% 0.149 258.9)
XYZ	xyz(18.6512, 17.4708, 58.8776)
Luminance	0.1747 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A73CB #CB923A

analogous

#3ABBCB #3A73CB #493ACB

triadic

#3A73CB #CB3A73 #73CB3A

tetradic

#3A73CB #CB3ABB #CB923A #3ACB49

square

#3A73CB #CB3ABB #CB923A #3ACB49

split-complementary

#3A73CB #CB493A #BBCB3A

monochromatic

#1D3D6E #2A579E #3A73CB #6A95D8 #9BB8E5

Accessibility & contrast

On white

4.67

#3A73CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#3A73CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A73CB

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A73CB	#FFFFFF	#000000	##FFFFFF
##3A73CB	1.00	4.67	4.49	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#487BCE

Deuteranopia (green-blind)

#2E6EC9

Tritanopia (blue-blind)

#008895

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3a73cb;
/* rgb */ color: rgb(58, 115, 203);
/* oklch */ color: oklch(56.2% 0.149 258.9);

Tailwind

colors: {
  custom: {
    50: '#829adb',
    500: '#3a73cb',
    950: '#000000',
  },
}

SCSS

$custom: #3a73cb;
$custom-light: #829adb;
$custom-dark: #000000;

JSON

{
  "hex": "#3a73cb",
  "rgb": {
    "r": 58,
    "g": 115,
    "b": 203
  },
  "hsl": {
    "h": 216.414,
    "s": 58.233,
    "l": 51.176
  },
  "oklch": {
    "l": 0.56232,
    "c": 0.14903,
    "h": 258.9
  },
  "luminance": 0.17473
}

Semantic roles & 50–950 ramp

primary

#3A73CB

secondary

#D0B790

accent

#A446E1

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3A73CB

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

Preview Lab → · Contrast checker → · Palette generator →