#4073DC#4073DC

#4073DC is a mid, vivid blue. Relative luminance 0.185; OKLCH L 57.6% C 0.170 H 262.8°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#4073DC
RGB	rgb(64, 115, 220)
HSL	hsl(220, 69%, 56%)
HSV	hsv(220, 71%, 86%)
CMYK	cmyk(70.9%, 47.7%, 0%, 13.7%)
CIE-LAB	lab(50.12, 18.05, -58.75)
CIE-LCH	lch(50.12, 61.46, 287.08°)
OKLab	oklab(57.61% -0.0214 -0.1685)
OKLCH	oklch(57.61% 0.17 262.8)
XYZ	xyz(21.1588, 18.5165, 70.1552)
Luminance	0.1852 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4073DC #DCA940

analogous

#40C1DC #4073DC #5B40DC

triadic

#4073DC #DC4073 #73DC40

tetradic

#4073DC #DC40C1 #DCA940 #40DC5B

square

#4073DC #DC40C1 #DCA940 #40DC5B

split-complementary

#4073DC #DC5B40 #C1DC40

monochromatic

#193D89 #2355BC #4073DC #7499E5 #A7BFEF

Accessibility & contrast

On white

4.46

#4073DC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#4073DC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4073DC

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4073DC	#FFFFFF	#000000	##000000
##4073DC	1.00	4.46	4.70	4.70
#FFFFFF	4.46	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A7FE0

Deuteranopia (green-blind)

#0B71DA

Tritanopia (blue-blind)

#008C9D

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4073dc;
/* rgb */ color: rgb(64, 115, 220);
/* oklch */ color: oklch(57.6% 0.170 262.8);

Tailwind

colors: {
  custom: {
    50: '#879ae7',
    500: '#4073dc',
    950: '#000000',
  },
}

SCSS

$custom: #4073dc;
$custom-light: #879ae7;
$custom-dark: #000000;

JSON

{
  "hex": "#4073dc",
  "rgb": {
    "r": 64,
    "g": 115,
    "b": 220
  },
  "hsl": {
    "h": 220.385,
    "s": 69.027,
    "l": 55.686
  },
  "oklch": {
    "l": 0.57607,
    "c": 0.16989,
    "h": 262.8
  },
  "luminance": 0.18519
}

Semantic roles & 50–950 ramp

primary

#4073DC

secondary

#DCC79B

accent

#B23CEC

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4073DC

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

Preview Lab → · Contrast checker → · Palette generator →