#4241DB#4241DB

#4241DB is a mid, highly saturated blue. Relative luminance 0.101; OKLCH L 48.6% C 0.226 H 274.3°. Best body text is #FFFFFF at 6.98:1 contrast (WCAG AA passes).

Color values

HEX	#4241DB
RGB	rgb(66, 65, 219)
HSL	hsl(240, 68%, 56%)
HSV	hsv(240, 70%, 86%)
CMYK	cmyk(69.9%, 70.3%, 0%, 14.1%)
CIE-LAB	lab(37.94, 48.79, -78.01)
CIE-LCH	lch(37.94, 92.01, 302.02°)
OKLab	oklab(48.55% 0.0169 -0.2255)
OKLCH	oklch(48.55% 0.226 274.3)
XYZ	xyz(16.9190, 10.0517, 68.0526)
Luminance	0.1005 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue (survey)

#0343DF

ΔE00 3.52

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4241DB #DADB41

analogous

#418DDB #4241DB #8F41DB

triadic

#4241DB #DB4241 #41DB42

tetradic

#4241DB #DB418D #DADB41 #41DB8F

square

#4241DB #DB418D #DADB41 #41DB8F

split-complementary

#4241DB #DB8F41 #8DDB41

monochromatic

#1A1A88 #2423BB #4241DB #7574E5 #A8A8EE

Accessibility & contrast

On white

6.98

#4241DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#4241DB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4241DB

6.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4241DB	#FFFFFF	#000000	##FFFFFF
##4241DB	1.00	6.98	3.01	6.98
#FFFFFF	6.98	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060E0

Deuteranopia (green-blind)

#0052D8

Tritanopia (blue-blind)

#006C89

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #4241db;
/* rgb */ color: rgb(66, 65, 219);
/* oklch */ color: oklch(48.6% 0.226 274.3);

Tailwind

colors: {
  custom: {
    50: '#8b77e7',
    500: '#4241db',
    950: '#000000',
  },
}

SCSS

$custom: #4241db;
$custom-light: #8b77e7;
$custom-dark: #000000;

JSON

{
  "hex": "#4241db",
  "rgb": {
    "r": 66,
    "g": 65,
    "b": 219
  },
  "hsl": {
    "h": 240.39,
    "s": 68.142,
    "l": 55.686
  },
  "oklch": {
    "l": 0.48551,
    "c": 0.22616,
    "h": 274.3
  },
  "luminance": 0.10053
}

Semantic roles & 50–950 ramp

primary

#4241DB

secondary

#DBDC9C

accent

#EB3DEA

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0916

muted

#7E7B84

Preview Lab

Preview with #4241DB

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

Preview Lab → · Contrast checker → · Palette generator →