#4070B7#4070B7

#4070B7 is a mid, vivid blue. Relative luminance 0.161; OKLCH L 54.6% C 0.123 H 258.1°. Best body text is #FFFFFF at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#4070B7
RGB	rgb(64, 112, 183)
HSL	hsl(216, 48%, 48%)
HSV	hsv(216, 65%, 72%)
CMYK	cmyk(65%, 38.8%, 0%, 28.2%)
CIE-LAB	lab(47.10, 6.68, -42.39)
CIE-LCH	lch(47.10, 42.91, 278.95°)
OKLab	oklab(54.58% -0.0254 -0.1205)
OKLCH	oklch(54.58% 0.123 258.1)
XYZ	xyz(16.4527, 16.0956, 47.0303)
Luminance	0.1610 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4070B7 #B78740

analogous

#40ABB7 #4070B7 #4B40B7

triadic

#4070B7 #B74070 #70B740

tetradic

#4070B7 #B740AB #B78740 #40B74B

square

#4070B7 #B740AB #B78740 #40B74B

split-complementary

#4070B7 #B74B40 #ABB740

monochromatic

#20385C #30548A #4070B7 #6991CB #97B2DB

Accessibility & contrast

On white

4.98

#4070B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.22

#4070B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4070B7

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4070B7	#FFFFFF	#000000	##FFFFFF
##4070B7	1.00	4.98	4.22	4.98
#FFFFFF	4.98	1.00	21.00	1.00
#000000	4.22	21.00	1.00	21.00
##FFFFFF	4.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5176BA

Deuteranopia (green-blind)

#3F6BB6

Tritanopia (blue-blind)

#00808B

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #4070b7;
/* rgb */ color: rgb(64, 112, 183);
/* oklch */ color: oklch(54.6% 0.123 258.1);

Tailwind

colors: {
  custom: {
    50: '#8198cd',
    500: '#4070b7',
    950: '#000000',
  },
}

SCSS

$custom: #4070b7;
$custom-light: #8198cd;
$custom-dark: #000000;

JSON

{
  "hex": "#4070b7",
  "rgb": {
    "r": 64,
    "g": 112,
    "b": 183
  },
  "hsl": {
    "h": 215.798,
    "s": 48.178,
    "l": 48.431
  },
  "oklch": {
    "l": 0.54576,
    "c": 0.12319,
    "h": 258.1
  },
  "luminance": 0.16097
}

Semantic roles & 50–950 ramp

primary

#4070B7

secondary

#C6AF8D

accent

#A150D8

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #4070B7

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

Preview Lab → · Contrast checker → · Palette generator →