#4241BB#4241BB

#4241BB is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.6% C 0.186 H 276.4°. Best body text is #FFFFFF at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#4241BB
RGB	rgb(66, 65, 187)
HSL	hsl(240, 48%, 49%)
HSV	hsv(240, 65%, 73%)
CMYK	cmyk(64.7%, 65.2%, 0%, 26.7%)
CIE-LAB	lab(35.05, 38.24, -64.15)
CIE-LCH	lch(35.05, 74.68, 300.80°)
OKLab	oklab(45.59% 0.0209 -0.185)
OKLCH	oklch(45.59% 0.186 276.4)
XYZ	xyz(13.1038, 8.5256, 47.9591)
Luminance	0.0853 (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

#4241BB #BABB41

analogous

#417DBB #4241BB #7F41BB

triadic

#4241BB #BB4241 #41BB42

tetradic

#4241BB #BB417D #BABB41 #41BB7F

square

#4241BB #BB417D #BABB41 #41BB7F

split-complementary

#4241BB #BB7F41 #7DBB41

monochromatic

#222160 #32318E #4241BB #6E6DCC #9B9ADC

Accessibility & contrast

On white

7.76

#4241BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#4241BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4241BB

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4241BB	#FFFFFF	#000000	##FFFFFF
##4241BB	1.00	7.76	2.71	7.76
#FFFFFF	7.76	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BF

Deuteranopia (green-blind)

#004DB9

Tritanopia (blue-blind)

#006178

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #4241bb;
/* rgb */ color: rgb(66, 65, 187);
/* oklch */ color: oklch(45.6% 0.186 276.4);

Tailwind

colors: {
  custom: {
    50: '#8576d0',
    500: '#4241bb',
    950: '#000000',
  },
}

SCSS

$custom: #4241bb;
$custom-light: #8576d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4241bb",
  "rgb": {
    "r": 66,
    "g": 65,
    "b": 187
  },
  "hsl": {
    "h": 240.492,
    "s": 48.413,
    "l": 49.412
  },
  "oklch": {
    "l": 0.45593,
    "c": 0.18615,
    "h": 276.4
  },
  "luminance": 0.08527
}

Semantic roles & 50–950 ramp

primary

#4241BB

secondary

#C8C890

accent

#D850D7

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #4241BB

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

Preview Lab → · Contrast checker → · Palette generator →