#4071D9#4071D9

#4071D9 is a mid, vivid blue. Relative luminance 0.179; OKLCH L 57.0% C 0.168 H 263.1°. Best body text is #000000 at 4.58:1 contrast (WCAG AA passes).

Color values

HEX	#4071D9
RGB	rgb(64, 113, 217)
HSL	hsl(221, 67%, 55%)
HSV	hsv(221, 71%, 85%)
CMYK	cmyk(70.5%, 47.9%, 0%, 14.9%)
CIE-LAB	lab(49.38, 18.22, -58.23)
CIE-LCH	lch(49.38, 61.01, 287.37°)
OKLab	oklab(56.99% -0.0201 -0.167)
OKLCH	oklch(56.99% 0.168 263.1)
XYZ	xyz(20.5394, 17.9078, 68.0063)
Luminance	0.1791 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4071D9 #D9A840

analogous

#40BED9 #4071D9 #5B40D9

triadic

#4071D9 #D94071 #71D940

tetradic

#4071D9 #D940BE #D9A840 #40D95B

square

#4071D9 #D940BE #D9A840 #40D95B

split-complementary

#4071D9 #D95B40 #BED940

monochromatic

#1A3C84 #2454B7 #4071D9 #7397E3 #A6BDED

Accessibility & contrast

On white

4.58

#4071D9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#4071D9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4071D9

4.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4071D9	#FFFFFF	#000000	##000000
##4071D9	1.00	4.58	4.58	4.58
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.58	21.00	1.00	1.00
##000000	4.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#387DDD

Deuteranopia (green-blind)

#096FD7

Tritanopia (blue-blind)

#00899A

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4071d9;
/* rgb */ color: rgb(64, 113, 217);
/* oklch */ color: oklch(57.0% 0.168 263.1);

Tailwind

colors: {
  custom: {
    50: '#8799e5',
    500: '#4071d9',
    950: '#000000',
  },
}

SCSS

$custom: #4071d9;
$custom-light: #8799e5;
$custom-dark: #000000;

JSON

{
  "hex": "#4071d9",
  "rgb": {
    "r": 64,
    "g": 113,
    "b": 217
  },
  "hsl": {
    "h": 220.784,
    "s": 66.812,
    "l": 55.098
  },
  "oklch": {
    "l": 0.56985,
    "c": 0.16825,
    "h": 263.1
  },
  "luminance": 0.1791
}

Semantic roles & 50–950 ramp

primary

#4071D9

secondary

#DAC69A

accent

#B33EEA

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #4071D9

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

Preview Lab → · Contrast checker → · Palette generator →