#4070D3#4070D3

#4070D3 is a mid, vivid blue. Relative luminance 0.174; OKLCH L 56.4% C 0.161 H 262.9°. Best body text is #FFFFFF at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#4070D3
RGB	rgb(64, 112, 211)
HSL	hsl(220, 63%, 54%)
HSV	hsv(220, 70%, 83%)
CMYK	cmyk(69.7%, 46.9%, 0%, 17.3%)
CIE-LAB	lab(48.73, 16.68, -55.86)
CIE-LCH	lch(48.73, 58.30, 286.63°)
OKLab	oklab(56.37% -0.0201 -0.1601)
OKLCH	oklch(56.37% 0.161 262.9)
XYZ	xyz(19.6622, 17.3794, 63.9337)
Luminance	0.1738 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4070D3 #D3A340

analogous

#40BAD3 #4070D3 #5A40D3

triadic

#4070D3 #D34070 #70D340

tetradic

#4070D3 #D340BA #D3A340 #40D35A

square

#4070D3 #D340BA #D3A340 #40D35A

split-complementary

#4070D3 #D35A40 #BAD340

monochromatic

#1D3C7C #2854AE #4070D3 #7295DE #A3BAEA

Accessibility & contrast

On white

4.69

#4070D3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#4070D3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4070D3

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4070D3	#FFFFFF	#000000	##FFFFFF
##4070D3	1.00	4.69	4.48	4.69
#FFFFFF	4.69	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C7BD7

Deuteranopia (green-blind)

#196DD1

Tritanopia (blue-blind)

#008797

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #4070d3;
/* rgb */ color: rgb(64, 112, 211);
/* oklch */ color: oklch(56.4% 0.161 262.9);

Tailwind

colors: {
  custom: {
    50: '#8698e1',
    500: '#4070d3',
    950: '#000000',
  },
}

SCSS

$custom: #4070d3;
$custom-light: #8698e1;
$custom-dark: #000000;

JSON

{
  "hex": "#4070d3",
  "rgb": {
    "r": 64,
    "g": 112,
    "b": 211
  },
  "hsl": {
    "h": 220.408,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.56367,
    "c": 0.16136,
    "h": 262.9
  },
  "luminance": 0.17381
}

Semantic roles & 50–950 ramp

primary

#4070D3

secondary

#D7C298

accent

#B042E6

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #4070D3

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

Preview Lab → · Contrast checker → · Palette generator →