#4071BF#4071BF

#4071BF is a mid, vivid blue. Relative luminance 0.167; OKLCH L 55.3% C 0.133 H 259.3°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#4071BF
RGB	rgb(64, 113, 191)
HSL	hsl(217, 50%, 50%)
HSV	hsv(217, 66%, 75%)
CMYK	cmyk(66.5%, 40.8%, 0%, 25.1%)
CIE-LAB	lab(47.83, 8.89, -45.86)
CIE-LCH	lch(47.83, 46.71, 280.97°)
OKLab	oklab(55.29% -0.0246 -0.1307)
OKLCH	oklch(55.29% 0.133 259.3)
XYZ	xyz(17.4201, 16.6601, 51.5778)
Luminance	0.1666 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4071BF #BF8E40

analogous

#40B1BF #4071BF #4E40BF

triadic

#4071BF #BF4071 #71BF40

tetradic

#4071BF #BF40B1 #BF8E40 #40BF4E

square

#4071BF #BF40B1 #BF8E40 #40BF4E

split-complementary

#4071BF #BF4E40 #B1BF40

monochromatic

#213B63 #315691 #4071BF #6E93CE #9CB5DE

Accessibility & contrast

On white

4.85

#4071BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#4071BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4071BF

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4071BF	#FFFFFF	#000000	##FFFFFF
##4071BF	1.00	4.85	4.33	4.85
#FFFFFF	4.85	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D78C2

Deuteranopia (green-blind)

#3A6CBD

Tritanopia (blue-blind)

#00838F

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #4071bf;
/* rgb */ color: rgb(64, 113, 191);
/* oklch */ color: oklch(55.3% 0.133 259.3);

Tailwind

colors: {
  custom: {
    50: '#8299d3',
    500: '#4071bf',
    950: '#000000',
  },
}

SCSS

$custom: #4071bf;
$custom-light: #8299d3;
$custom-dark: #000000;

JSON

{
  "hex": "#4071bf",
  "rgb": {
    "r": 64,
    "g": 113,
    "b": 191
  },
  "hsl": {
    "h": 216.85,
    "s": 49.804,
    "l": 50
  },
  "oklch": {
    "l": 0.55286,
    "c": 0.13299,
    "h": 259.3
  },
  "luminance": 0.16662
}

Semantic roles & 50–950 ramp

primary

#4071BF

secondary

#CAB491

accent

#A44ED9

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0D14

muted

#7D7E83

Preview Lab

Preview with #4071BF

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

Preview Lab → · Contrast checker → · Palette generator →