#4073F1#4073F1

#4073F1 is a mid, vivid blue. Relative luminance 0.197; OKLCH L 59.1% C 0.198 H 264.5°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#4073F1
RGB	rgb(64, 115, 241)
HSL	hsl(223, 86%, 60%)
HSV	hsv(223, 73%, 95%)
CMYK	cmyk(73.4%, 52.3%, 0%, 5.5%)
CIE-LAB	lab(51.50, 25.61, -68.31)
CIE-LCH	lch(51.50, 72.95, 290.55°)
OKLab	oklab(59.1% -0.019 -0.1967)
OKLCH	oklch(59.1% 0.198 264.5)
XYZ	xyz(24.1167, 19.6997, 85.7334)
Luminance	0.1970 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4073F1 #F1BE40

analogous

#40CBF1 #4073F1 #6640F1

triadic

#4073F1 #F14073 #73F140

tetradic

#4073F1 #F140CB #F1BE40 #40F166

square

#4073F1 #F140CB #F1BE40 #40F166

split-complementary

#4073F1 #F16640 #CBF140

monochromatic

#0C3AAA #114DE3 #4073F1 #799DF5 #B2C7F9

Accessibility & contrast

On white

4.25

#4073F1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#4073F1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4073F1

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4073F1	#FFFFFF	#000000	##000000
##4073F1	1.00	4.25	4.94	4.94
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1683F5

Deuteranopia (green-blind)

#0073EE

Tritanopia (blue-blind)

#0092A7

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #4073f1;
/* rgb */ color: rgb(64, 115, 241);
/* oklch */ color: oklch(59.1% 0.198 264.5);

Tailwind

colors: {
  custom: {
    50: '#8b9af6',
    500: '#4073f1',
    950: '#000000',
  },
}

SCSS

$custom: #4073f1;
$custom-light: #8b9af6;
$custom-dark: #000000;

JSON

{
  "hex": "#4073f1",
  "rgb": {
    "r": 64,
    "g": 115,
    "b": 241
  },
  "hsl": {
    "h": 222.712,
    "s": 86.341,
    "l": 59.804
  },
  "oklch": {
    "l": 0.59097,
    "c": 0.1976,
    "h": 264.5
  },
  "luminance": 0.19702
}

Semantic roles & 50–950 ramp

primary

#4073F1

secondary

#E9D5A4

accent

#C02BFD

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #4073F1

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

Preview Lab → · Contrast checker → · Palette generator →