#3A73DB#3A73DB

#3A73DB is a mid, vivid blue. Relative luminance 0.183; OKLCH L 57.3% C 0.170 H 261.2°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#3A73DB
RGB	rgb(58, 115, 219)
HSL	hsl(219, 69%, 54%)
HSV	hsv(219, 74%, 86%)
CMYK	cmyk(73.5%, 47.5%, 0%, 14.1%)
CIE-LAB	lab(49.83, 16.89, -58.66)
CIE-LCH	lch(49.83, 61.04, 286.06°)
OKLab	oklab(57.3% -0.026 -0.1684)
OKLCH	oklch(57.3% 0.17 261.2)
XYZ	xyz(20.6572, 18.2732, 69.4425)
Luminance	0.1827 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A73DB #DBA23A

analogous

#3AC3DB #3A73DB #523ADB

triadic

#3A73DB #DB3A73 #73DB3A

tetradic

#3A73DB #DB3AC3 #DBA23A #3ADB52

square

#3A73DB #DB3AC3 #DBA23A #3ADB52

split-complementary

#3A73DB #DB523A #C3DB3A

monochromatic

#183E83 #2156B6 #3A73DB #6E98E4 #A1BDEE

Accessibility & contrast

On white

4.51

#3A73DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#3A73DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3A73DB

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A73DB	#FFFFFF	#000000	##000000
##3A73DB	1.00	4.51	4.66	4.66
#FFFFFF	4.51	1.00	21.00	21.00
#000000	4.66	21.00	1.00	1.00
##000000	4.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A7EDF

Deuteranopia (green-blind)

#0570D9

Tritanopia (blue-blind)

#008C9C

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3a73db;
/* rgb */ color: rgb(58, 115, 219);
/* oklch */ color: oklch(57.3% 0.170 261.2);

Tailwind

colors: {
  custom: {
    50: '#859ae7',
    500: '#3a73db',
    950: '#000000',
  },
}

SCSS

$custom: #3a73db;
$custom-light: #859ae7;
$custom-dark: #000000;

JSON

{
  "hex": "#3a73db",
  "rgb": {
    "r": 58,
    "g": 115,
    "b": 219
  },
  "hsl": {
    "h": 218.758,
    "s": 69.099,
    "l": 54.314
  },
  "oklch": {
    "l": 0.573,
    "c": 0.17038,
    "h": 261.2
  },
  "luminance": 0.18275
}

Semantic roles & 50–950 ramp

primary

#3A73DB

secondary

#DBC296

accent

#AE3CEC

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0C0E16

muted

#7D7E84

Preview Lab

Preview with #3A73DB

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

Preview Lab → · Contrast checker → · Palette generator →