#4071DA#4071DA

#4071DA is a mid, vivid blue. Relative luminance 0.180; OKLCH L 57.1% C 0.170 H 263.2°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#4071DA
RGB	rgb(64, 113, 218)
HSL	hsl(221, 68%, 55%)
HSV	hsv(221, 71%, 85%)
CMYK	cmyk(70.6%, 48.2%, 0%, 14.5%)
CIE-LAB	lab(49.45, 18.58, -58.69)
CIE-LCH	lch(49.45, 61.56, 287.56°)
OKLab	oklab(57.05% -0.02 -0.1684)
OKLCH	oklch(57.05% 0.17 263.2)
XYZ	xyz(20.6699, 17.9600, 68.6934)
Luminance	0.1796 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4071DA #DAA940

analogous

#40BEDA #4071DA #5C40DA

triadic

#4071DA #DA4071 #71DA40

tetradic

#4071DA #DA40BE #DAA940 #40DA5C

square

#4071DA #DA40BE #DAA940 #40DA5C

split-complementary

#4071DA #DA5C40 #BEDA40

monochromatic

#1A3C86 #2453B9 #4071DA #7397E4 #A7BDEE

Accessibility & contrast

On white

4.57

#4071DA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#4071DA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4071DA

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4071DA	#FFFFFF	#000000	##000000
##4071DA	1.00	4.57	4.59	4.59
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#377DDE

Deuteranopia (green-blind)

#046FD8

Tritanopia (blue-blind)

#008A9B

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #4071da;
/* rgb */ color: rgb(64, 113, 218);
/* oklch */ color: oklch(57.1% 0.170 263.2);

Tailwind

colors: {
  custom: {
    50: '#8799e6',
    500: '#4071da',
    950: '#000000',
  },
}

SCSS

$custom: #4071da;
$custom-light: #8799e6;
$custom-dark: #000000;

JSON

{
  "hex": "#4071da",
  "rgb": {
    "r": 64,
    "g": 113,
    "b": 218
  },
  "hsl": {
    "h": 220.909,
    "s": 67.544,
    "l": 55.294
  },
  "oklch": {
    "l": 0.57054,
    "c": 0.1696,
    "h": 263.2
  },
  "luminance": 0.17962
}

Semantic roles & 50–950 ramp

primary

#4071DA

secondary

#DBC79B

accent

#B33DEA

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #4071DA

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

Preview Lab → · Contrast checker → · Palette generator →