#4051BD#4051BD

#4051BD is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.5% C 0.170 H 271.8°. Best body text is #FFFFFF at 6.71:1 contrast (WCAG AA passes).

Color values

HEX	#4051BD
RGB	rgb(64, 81, 189)
HSL	hsl(232, 49%, 50%)
HSV	hsv(232, 66%, 74%)
CMYK	cmyk(66.1%, 57.1%, 0%, 25.9%)
CIE-LAB	lab(38.98, 28.57, -58.93)
CIE-LCH	lch(38.98, 65.49, 295.86°)
OKLab	oklab(48.51% 0.0052 -0.1696)
OKLCH	oklch(48.51% 0.17 271.8)
XYZ	xyz(14.2390, 10.6477, 49.4391)
Luminance	0.1065 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4051BD #BDAC40

analogous

#4090BD #4051BD #6E40BD

triadic

#4051BD #BD4051 #51BD40

tetradic

#4051BD #BD4090 #BDAC40 #40BD6E

square

#4051BD #BD4090 #BDAC40 #40BD6E

split-complementary

#4051BD #BD6E40 #90BD40

monochromatic

#212A62 #313D8F #4051BD #6D7ACD #9AA3DD

Accessibility & contrast

On white

6.71

#4051BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#4051BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4051BD

6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4051BD	#FFFFFF	#000000	##FFFFFF
##4051BD	1.00	6.71	3.13	6.71
#FFFFFF	6.71	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062C1

Deuteranopia (green-blind)

#0056BB

Tritanopia (blue-blind)

#006B7F

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #4051bd;
/* rgb */ color: rgb(64, 81, 189);
/* oklch */ color: oklch(48.5% 0.170 271.8);

Tailwind

colors: {
  custom: {
    50: '#8381d2',
    500: '#4051bd',
    950: '#000000',
  },
}

SCSS

$custom: #4051bd;
$custom-light: #8381d2;
$custom-dark: #000000;

JSON

{
  "hex": "#4051bd",
  "rgb": {
    "r": 64,
    "g": 81,
    "b": 189
  },
  "hsl": {
    "h": 231.84,
    "s": 49.407,
    "l": 49.608
  },
  "oklch": {
    "l": 0.48505,
    "c": 0.16965,
    "h": 271.8
  },
  "luminance": 0.10649
}

Semantic roles & 50–950 ramp

primary

#4051BD

secondary

#C9C190

accent

#C64FD9

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #4051BD

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

Preview Lab → · Contrast checker → · Palette generator →