#4070BF#4070BF

#4070BF is a mid, vivid blue. Relative luminance 0.164; OKLCH L 55.1% C 0.134 H 259.8°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#4070BF
RGB	rgb(64, 112, 191)
HSL	hsl(217, 50%, 50%)
HSV	hsv(217, 66%, 75%)
CMYK	cmyk(66.5%, 41.4%, 0%, 25.1%)
CIE-LAB	lab(47.54, 9.51, -46.31)
CIE-LCH	lch(47.54, 47.28, 281.61°)
OKLab	oklab(55.07% -0.0236 -0.132)
OKLCH	oklch(55.07% 0.134 259.8)
XYZ	xyz(17.3091, 16.4382, 51.5408)
Luminance	0.1644 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4070BF #BF8F40

analogous

#40AFBF #4070BF #5040BF

triadic

#4070BF #BF4070 #70BF40

tetradic

#4070BF #BF40AF #BF8F40 #40BF50

square

#4070BF #BF40AF #BF8F40 #40BF50

split-complementary

#4070BF #BF5040 #AFBF40

monochromatic

#213A63 #315591 #4070BF #6E92CE #9CB5DE

Accessibility & contrast

On white

4.90

#4070BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#4070BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4070BF

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4070BF	#FFFFFF	#000000	##FFFFFF
##4070BF	1.00	4.90	4.29	4.90
#FFFFFF	4.90	1.00	21.00	1.00
#000000	4.29	21.00	1.00	21.00
##FFFFFF	4.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C77C2

Deuteranopia (green-blind)

#386BBD

Tritanopia (blue-blind)

#00828E

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #4070bf;
/* rgb */ color: rgb(64, 112, 191);
/* oklch */ color: oklch(55.1% 0.134 259.8);

Tailwind

colors: {
  custom: {
    50: '#8298d3',
    500: '#4070bf',
    950: '#000000',
  },
}

SCSS

$custom: #4070bf;
$custom-light: #8298d3;
$custom-dark: #000000;

JSON

{
  "hex": "#4070bf",
  "rgb": {
    "r": 64,
    "g": 112,
    "b": 191
  },
  "hsl": {
    "h": 217.323,
    "s": 49.804,
    "l": 50
  },
  "oklch": {
    "l": 0.55066,
    "c": 0.13413,
    "h": 259.8
  },
  "luminance": 0.1644
}

Semantic roles & 50–950 ramp

primary

#4070BF

secondary

#CAB491

accent

#A54ED9

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0D14

muted

#7D7E83

Preview Lab

Preview with #4070BF

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

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