#4047B3#4047B3

#4047B3 is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.8% C 0.169 H 274.7°. Best body text is #FFFFFF at 7.58:1 contrast (WCAG AA passes).

Color values

HEX	#4047B3
RGB	rgb(64, 71, 179)
HSL	hsl(236, 47%, 48%)
HSV	hsv(236, 64%, 70%)
CMYK	cmyk(64.2%, 60.3%, 0%, 29.8%)
CIE-LAB	lab(35.69, 31.46, -58.39)
CIE-LCH	lch(35.69, 66.32, 298.32°)
OKLab	oklab(45.82% 0.014 -0.1681)
OKLCH	oklch(45.82% 0.169 274.7)
XYZ	xyz(12.5016, 8.8501, 43.6885)
Luminance	0.0885 (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

#4047B3 #B3AC40

analogous

#4080B3 #4047B3 #7340B3

triadic

#4047B3 #B34047 #47B340

tetradic

#4047B3 #B34080 #B3AC40 #40B373

square

#4047B3 #B34080 #B3AC40 #40B373

split-complementary

#4047B3 #B37340 #80B340

monochromatic

#202359 #303586 #4047B3 #676DC9 #9499D9

Accessibility & contrast

On white

7.58

#4047B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#4047B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4047B3

7.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4047B3	#FFFFFF	#000000	##FFFFFF
##4047B3	1.00	7.58	2.77	7.58
#FFFFFF	7.58	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059B7

Deuteranopia (green-blind)

#004FB1

Tritanopia (blue-blind)

#006276

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #4047b3;
/* rgb */ color: rgb(64, 71, 179);
/* oklch */ color: oklch(45.8% 0.169 274.7);

Tailwind

colors: {
  custom: {
    50: '#827acb',
    500: '#4047b3',
    950: '#000000',
  },
}

SCSS

$custom: #4047b3;
$custom-light: #827acb;
$custom-dark: #000000;

JSON

{
  "hex": "#4047b3",
  "rgb": {
    "r": 64,
    "g": 71,
    "b": 179
  },
  "hsl": {
    "h": 236.348,
    "s": 47.325,
    "l": 47.647
  },
  "oklch": {
    "l": 0.45823,
    "c": 0.16866,
    "h": 274.7
  },
  "luminance": 0.08851
}

Semantic roles & 50–950 ramp

primary

#4047B3

secondary

#C4C18A

accent

#CF51D7

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0913

muted

#7D7B82

Preview Lab

Preview with #4047B3

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

Preview Lab → · Contrast checker → · Palette generator →