#4073BE#4073BE

#4073BE is a mid, vivid blue. Relative luminance 0.171; OKLCH L 55.7% C 0.129 H 258.0°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#4073BE
RGB	rgb(64, 115, 190)
HSL	hsl(216, 50%, 50%)
HSV	hsv(216, 66%, 75%)
CMYK	cmyk(66.3%, 39.5%, 0%, 25.5%)
CIE-LAB	lab(48.34, 7.29, -44.46)
CIE-LCH	lch(48.34, 45.05, 279.32°)
OKLab	oklab(55.67% -0.0269 -0.1266)
OKLCH	oklch(55.67% 0.129 258)
XYZ	xyz(17.5360, 17.0674, 51.0754)
Luminance	0.1707 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4073BE #BE8B40

analogous

#40B2BE #4073BE #4C40BE

triadic

#4073BE #BE4073 #73BE40

tetradic

#4073BE #BE40B2 #BE8B40 #40BE4C

square

#4073BE #BE40B2 #BE8B40 #40BE4C

split-complementary

#4073BE #BE4C40 #B2BE40

monochromatic

#213C62 #315790 #4073BE #6D94CE #9BB6DD

Accessibility & contrast

On white

4.76

#4073BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#4073BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4073BE

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4073BE	#FFFFFF	#000000	##FFFFFF
##4073BE	1.00	4.76	4.41	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5179C1

Deuteranopia (green-blind)

#3F6DBC

Tritanopia (blue-blind)

#00848F

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4073be;
/* rgb */ color: rgb(64, 115, 190);
/* oklch */ color: oklch(55.7% 0.129 258.0);

Tailwind

colors: {
  custom: {
    50: '#829ad2',
    500: '#4073be',
    950: '#000000',
  },
}

SCSS

$custom: #4073be;
$custom-light: #829ad2;
$custom-dark: #000000;

JSON

{
  "hex": "#4073be",
  "rgb": {
    "r": 64,
    "g": 115,
    "b": 190
  },
  "hsl": {
    "h": 215.714,
    "s": 49.606,
    "l": 49.804
  },
  "oklch": {
    "l": 0.55668,
    "c": 0.12938,
    "h": 258
  },
  "luminance": 0.17069
}

Semantic roles & 50–950 ramp

primary

#4073BE

secondary

#C9B290

accent

#A14FD9

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #4073BE

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

Preview Lab → · Contrast checker → · Palette generator →