#4047FF#4047FF

#4047FF is a mid, highly saturated blue. Relative luminance 0.128; OKLCH L 52.8% C 0.263 H 271.4°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#4047FF
RGB	rgb(64, 71, 255)
HSL	hsl(238, 100%, 63%)
HSV	hsv(238, 75%, 100%)
CMYK	cmyk(74.9%, 72.2%, 0%, 0%)
CIE-LAB	lab(42.48, 56.82, -90.87)
CIE-LCH	lch(42.48, 107.17, 302.02°)
OKLab	oklab(52.81% 0.0064 -0.2631)
OKLCH	oklch(52.81% 0.263 271.4)
XYZ	xyz(22.4115, 12.8140, 95.8806)
Luminance	0.1282 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4047FF #FFF840

analogous

#40A7FF #4047FF #9840FF

triadic

#4047FF #FF4047 #47FF40

tetradic

#4047FF #FF40A7 #FFF840 #40FF98

square

#4047FF #FF40A7 #FFF840 #40FF98

split-complementary

#4047FF #FF9840 #A7FF40

monochromatic

#0007C5 #030CFF #4047FF #7D82FF #BABDFF

Accessibility & contrast

On white

5.89

#4047FF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#4047FF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4047FF

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4047FF	#FFFFFF	#000000	##FFFFFF
##4047FF	1.00	5.89	3.56	5.89
#FFFFFF	5.89	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006EFF

Deuteranopia (green-blind)

#005BFC

Tritanopia (blue-blind)

#007C9F

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #4047ff;
/* rgb */ color: rgb(64, 71, 255);
/* oklch */ color: oklch(52.8% 0.263 271.4);

Tailwind

colors: {
  custom: {
    50: '#927cff',
    500: '#4047ff',
    950: '#000000',
  },
}

SCSS

$custom: #4047ff;
$custom-light: #927cff;
$custom-dark: #000000;

JSON

{
  "hex": "#4047ff",
  "rgb": {
    "r": 64,
    "g": 71,
    "b": 255
  },
  "hsl": {
    "h": 237.801,
    "s": 100,
    "l": 62.549
  },
  "oklch": {
    "l": 0.52806,
    "c": 0.26315,
    "h": 271.4
  },
  "luminance": 0.12816
}

Semantic roles & 50–950 ramp

primary

#4047FF

secondary

#F0EEAB

accent

#DD00E6

background

#FAF7FF

surface

#F4EEFF

border

#CEC9D7

text

#0F0A18

muted

#7F7C86

Preview Lab

Preview with #4047FF

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

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