#4070D8#4070D8

#4070D8 is a mid, vivid blue. Relative luminance 0.176; OKLCH L 56.7% C 0.168 H 263.4°. Best body text is #FFFFFF at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#4070D8
RGB	rgb(64, 112, 216)
HSL	hsl(221, 66%, 55%)
HSV	hsv(221, 70%, 85%)
CMYK	cmyk(70.4%, 48.1%, 0%, 15.3%)
CIE-LAB	lab(49.05, 18.48, -58.20)
CIE-LCH	lch(49.05, 61.06, 287.62°)
OKLab	oklab(56.71% -0.0194 -0.167)
OKLCH	oklch(56.71% 0.168 263.4)
XYZ	xyz(20.2988, 17.6341, 67.2864)
Luminance	0.1764 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4070D8 #D8A840

analogous

#40BCD8 #4070D8 #5C40D8

triadic

#4070D8 #D84070 #70D840

tetradic

#4070D8 #D840BC #D8A840 #40D85C

square

#4070D8 #D840BC #D8A840 #40D85C

split-complementary

#4070D8 #D85C40 #BCD840

monochromatic

#1B3C83 #2553B6 #4070D8 #7396E2 #A6BCED

Accessibility & contrast

On white

4.64

#4070D8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.53

#4070D8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4070D8

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4070D8	#FFFFFF	#000000	##FFFFFF
##4070D8	1.00	4.64	4.53	4.64
#FFFFFF	4.64	1.00	21.00	1.00
#000000	4.53	21.00	1.00	21.00
##FFFFFF	4.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#377CDC

Deuteranopia (green-blind)

#066ED6

Tritanopia (blue-blind)

#00889A

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4070d8;
/* rgb */ color: rgb(64, 112, 216);
/* oklch */ color: oklch(56.7% 0.168 263.4);

Tailwind

colors: {
  custom: {
    50: '#8798e5',
    500: '#4070d8',
    950: '#000000',
  },
}

SCSS

$custom: #4070d8;
$custom-light: #8798e5;
$custom-dark: #000000;

JSON

{
  "hex": "#4070d8",
  "rgb": {
    "r": 64,
    "g": 112,
    "b": 216
  },
  "hsl": {
    "h": 221.053,
    "s": 66.087,
    "l": 54.902
  },
  "oklch": {
    "l": 0.56709,
    "c": 0.1681,
    "h": 263.4
  },
  "luminance": 0.17636
}

Semantic roles & 50–950 ramp

primary

#4070D8

secondary

#DAC69A

accent

#B33FE9

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0D0D16

muted

#7D7E84

Preview Lab

Preview with #4070D8

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

Preview Lab → · Contrast checker → · Palette generator →