#4050BB#4050BB

#4050BB is a mid, vivid blue. Relative luminance 0.104; OKLCH L 48.2% C 0.168 H 272.1°. Best body text is #FFFFFF at 6.81:1 contrast (WCAG AA passes).

Color values

HEX	#4050BB
RGB	rgb(64, 80, 187)
HSL	hsl(232, 49%, 49%)
HSV	hsv(232, 66%, 73%)
CMYK	cmyk(65.8%, 57.2%, 0%, 26.7%)
CIE-LAB	lab(38.58, 28.50, -58.41)
CIE-LCH	lch(38.58, 65.00, 296.01°)
OKLab	oklab(48.16% 0.0061 -0.1681)
OKLCH	oklch(48.16% 0.168 272.1)
XYZ	xyz(13.9496, 10.4139, 48.2790)
Luminance	0.1042 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4050BB #BBAB40

analogous

#408EBB #4050BB #6E40BB

triadic

#4050BB #BB4050 #50BB40

tetradic

#4050BB #BB408E #BBAB40 #40BB6E

square

#4050BB #BB408E #BBAB40 #40BB6E

split-complementary

#4050BB #BB6E40 #8EBB40

monochromatic

#212960 #303C8D #4050BB #6C78CD #99A2DC

Accessibility & contrast

On white

6.81

#4050BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#4050BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4050BB

6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4050BB	#FFFFFF	#000000	##FFFFFF
##4050BB	1.00	6.81	3.08	6.81
#FFFFFF	6.81	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060BF

Deuteranopia (green-blind)

#0055B9

Tritanopia (blue-blind)

#006A7D

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #4050bb;
/* rgb */ color: rgb(64, 80, 187);
/* oklch */ color: oklch(48.2% 0.168 272.1);

Tailwind

colors: {
  custom: {
    50: '#8381d0',
    500: '#4050bb',
    950: '#000000',
  },
}

SCSS

$custom: #4050bb;
$custom-light: #8381d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4050bb",
  "rgb": {
    "r": 64,
    "g": 80,
    "b": 187
  },
  "hsl": {
    "h": 232.195,
    "s": 49.004,
    "l": 49.216
  },
  "oklch": {
    "l": 0.48155,
    "c": 0.16819,
    "h": 272.1
  },
  "luminance": 0.10415
}

Semantic roles & 50–950 ramp

primary

#4050BB

secondary

#C8C18F

accent

#C74FD9

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #4050BB

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

Preview Lab → · Contrast checker → · Palette generator →