#4047CB#4047CB

#4047CB is a mid, highly saturated blue. Relative luminance 0.099; OKLCH L 47.9% C 0.200 H 273.6°. Best body text is #FFFFFF at 7.04:1 contrast (WCAG AA passes).

Color values

HEX	#4047CB
RGB	rgb(64, 71, 203)
HSL	hsl(237, 57%, 52%)
HSV	hsv(237, 68%, 80%)
CMYK	cmyk(68.5%, 65%, 0%, 20.4%)
CIE-LAB	lab(37.67, 39.70, -69.21)
CIE-LCH	lch(37.67, 79.79, 299.84°)
OKLab	oklab(47.89% 0.0127 -0.1998)
OKLCH	oklch(47.89% 0.2 273.6)
XYZ	xyz(15.1435, 9.9068, 57.6025)
Luminance	0.0991 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4047CB #CBC440

analogous

#408DCB #4047CB #7E40CB

triadic

#4047CB #CB4047 #47CB40

tetradic

#4047CB #CB408D #CBC440 #40CB7E

square

#4047CB #CB408D #CBC440 #40CB7E

split-complementary

#4047CB #CB7E40 #8DCB40

monochromatic

#1F2372 #2C32A2 #4047CB #7075D8 #A0A4E5

Accessibility & contrast

On white

7.04

#4047CB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#4047CB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4047CB

7.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4047CB	#FFFFFF	#000000	##FFFFFF
##4047CB	1.00	7.04	2.98	7.04
#FFFFFF	7.04	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FCF

Deuteranopia (green-blind)

#0052C8

Tritanopia (blue-blind)

#006A83

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #4047cb;
/* rgb */ color: rgb(64, 71, 203);
/* oklch */ color: oklch(47.9% 0.200 273.6);

Tailwind

colors: {
  custom: {
    50: '#867adc',
    500: '#4047cb',
    950: '#000000',
  },
}

SCSS

$custom: #4047cb;
$custom-light: #867adc;
$custom-dark: #000000;

JSON

{
  "hex": "#4047cb",
  "rgb": {
    "r": 64,
    "g": 71,
    "b": 203
  },
  "hsl": {
    "h": 236.978,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.47891,
    "c": 0.20025,
    "h": 273.6
  },
  "luminance": 0.09908
}

Semantic roles & 50–950 ramp

primary

#4047CB

secondary

#D2CF95

accent

#D947E0

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #4047CB

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

Preview Lab → · Contrast checker → · Palette generator →