#4071E3#4071E3

#4071E3 is a mid, vivid blue. Relative luminance 0.184; OKLCH L 57.7% C 0.182 H 264.0°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#4071E3
RGB	rgb(64, 113, 227)
HSL	hsl(222, 74%, 57%)
HSV	hsv(222, 72%, 89%)
CMYK	cmyk(71.8%, 50.2%, 0%, 11%)
CIE-LAB	lab(50.03, 21.82, -62.84)
CIE-LCH	lch(50.03, 66.52, 289.15°)
OKLab	oklab(57.68% -0.0188 -0.1806)
OKLCH	oklch(57.68% 0.182 264)
XYZ	xyz(21.8797, 18.4440, 75.0651)
Luminance	0.1845 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4071E3 #E3B240

analogous

#40C3E3 #4071E3 #6140E3

triadic

#4071E3 #E34071 #71E340

tetradic

#4071E3 #E340C3 #E3B240 #40E361

square

#4071E3 #E340C3 #E3B240 #40E361

split-complementary

#4071E3 #E36140 #C3E340

monochromatic

#163B93 #1D51C8 #4071E3 #7599EB #ABC0F3

Accessibility & contrast

On white

4.48

#4071E3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#4071E3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4071E3

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4071E3	#FFFFFF	#000000	##000000
##4071E3	1.00	4.48	4.69	4.69
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B7FE7

Deuteranopia (green-blind)

#0070E1

Tritanopia (blue-blind)

#008C9F

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4071e3;
/* rgb */ color: rgb(64, 113, 227);
/* oklch */ color: oklch(57.7% 0.182 264.0);

Tailwind

colors: {
  custom: {
    50: '#8999ec',
    500: '#4071e3',
    950: '#000000',
  },
}

SCSS

$custom: #4071e3;
$custom-light: #8999ec;
$custom-dark: #000000;

JSON

{
  "hex": "#4071e3",
  "rgb": {
    "r": 64,
    "g": 113,
    "b": 227
  },
  "hsl": {
    "h": 221.963,
    "s": 74.429,
    "l": 57.059
  },
  "oklch": {
    "l": 0.57685,
    "c": 0.18159,
    "h": 264
  },
  "luminance": 0.18446
}

Semantic roles & 50–950 ramp

primary

#4071E3

secondary

#E1CD9E

accent

#B937F1

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #4071E3

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

Preview Lab → · Contrast checker → · Palette generator →