#4070E3#4070E3

#4070E3 is a mid, vivid blue. Relative luminance 0.182; OKLCH L 57.5% C 0.183 H 264.3°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#4070E3
RGB	rgb(64, 112, 227)
HSL	hsl(222, 74%, 57%)
HSV	hsv(222, 72%, 89%)
CMYK	cmyk(71.8%, 50.7%, 0%, 11%)
CIE-LAB	lab(49.76, 22.45, -63.26)
CIE-LCH	lch(49.76, 67.13, 289.54°)
OKLab	oklab(57.48% -0.018 -0.1819)
OKLCH	oklch(57.48% 0.183 264.3)
XYZ	xyz(21.7688, 18.2221, 75.0281)
Luminance	0.1822 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4070E3 #E3B340

analogous

#40C2E3 #4070E3 #6240E3

triadic

#4070E3 #E34070 #70E340

tetradic

#4070E3 #E340C2 #E3B340 #40E362

square

#4070E3 #E340C2 #E3B340 #40E362

split-complementary

#4070E3 #E36240 #C2E340

monochromatic

#163B93 #1D50C8 #4070E3 #7598EB #ABC0F3

Accessibility & contrast

On white

4.52

#4070E3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#4070E3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4070E3

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4070E3	#FFFFFF	#000000	##000000
##4070E3	1.00	4.52	4.64	4.64
#FFFFFF	4.52	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#287EE7

Deuteranopia (green-blind)

#006FE1

Tritanopia (blue-blind)

#008B9F

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #4070e3;
/* rgb */ color: rgb(64, 112, 227);
/* oklch */ color: oklch(57.5% 0.183 264.3);

Tailwind

colors: {
  custom: {
    50: '#8998ec',
    500: '#4070e3',
    950: '#000000',
  },
}

SCSS

$custom: #4070e3;
$custom-light: #8998ec;
$custom-dark: #000000;

JSON

{
  "hex": "#4070e3",
  "rgb": {
    "r": 64,
    "g": 112,
    "b": 227
  },
  "hsl": {
    "h": 222.331,
    "s": 74.429,
    "l": 57.059
  },
  "oklch": {
    "l": 0.57483,
    "c": 0.18278,
    "h": 264.3
  },
  "luminance": 0.18224
}

Semantic roles & 50–950 ramp

primary

#4070E3

secondary

#E1CD9E

accent

#BA37F1

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #4070E3

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

Preview Lab → · Contrast checker → · Palette generator →