#4071CB#4071CB

#4071CB is a mid, vivid blue. Relative luminance 0.172; OKLCH L 56.0% C 0.149 H 261.4°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#4071CB
RGB	rgb(64, 113, 203)
HSL	hsl(219, 57%, 52%)
HSV	hsv(219, 68%, 80%)
CMYK	cmyk(68.5%, 44.3%, 0%, 20.4%)
CIE-LAB	lab(48.52, 13.18, -51.64)
CIE-LCH	lch(48.52, 53.29, 284.32°)
OKLab	oklab(56.05% -0.0223 -0.1477)
OKLCH	oklch(56.05% 0.149 261.4)
XYZ	xyz(18.7951, 17.2101, 58.8197)
Luminance	0.1721 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4071CB #CB9A40

analogous

#40B7CB #4071CB #5540CB

triadic

#4071CB #CB4071 #71CB40

tetradic

#4071CB #CB40B7 #CB9A40 #40CB55

square

#4071CB #CB40B7 #CB9A40 #40CB55

split-complementary

#4071CB #CB5540 #B7CB40

monochromatic

#1F3C72 #2C56A2 #4071CB #7095D8 #A0B9E5

Accessibility & contrast

On white

4.73

#4071CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#4071CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4071CB

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4071CB	#FFFFFF	#000000	##FFFFFF
##4071CB	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#457ACE

Deuteranopia (green-blind)

#2C6DC9

Tritanopia (blue-blind)

#008694

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4071cb;
/* rgb */ color: rgb(64, 113, 203);
/* oklch */ color: oklch(56.0% 0.149 261.4);

Tailwind

colors: {
  custom: {
    50: '#8499db',
    500: '#4071cb',
    950: '#000000',
  },
}

SCSS

$custom: #4071cb;
$custom-light: #8499db;
$custom-dark: #000000;

JSON

{
  "hex": "#4071cb",
  "rgb": {
    "r": 64,
    "g": 113,
    "b": 203
  },
  "hsl": {
    "h": 218.849,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.56048,
    "c": 0.14934,
    "h": 261.4
  },
  "luminance": 0.17212
}

Semantic roles & 50–950 ramp

primary

#4071CB

secondary

#D2BC95

accent

#AA47E0

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #4071CB

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

Preview Lab → · Contrast checker → · Palette generator →