#4245D9#4245D9

#4245D9 is a mid, highly saturated blue. Relative luminance 0.104; OKLCH L 49.0% C 0.220 H 273.9°. Best body text is #FFFFFF at 6.81:1 contrast (WCAG AA passes).

Color values

HEX	#4245D9
RGB	rgb(66, 69, 217)
HSL	hsl(239, 67%, 55%)
HSV	hsv(239, 70%, 85%)
CMYK	cmyk(69.6%, 68.2%, 0%, 14.9%)
CIE-LAB	lab(38.59, 45.83, -75.78)
CIE-LCH	lch(38.59, 88.56, 301.16°)
OKLab	oklab(48.97% 0.0148 -0.219)
OKLCH	oklch(48.97% 0.22 273.9)
XYZ	xyz(16.8951, 10.4226, 66.7536)
Luminance	0.1042 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue (survey)

#0343DF

ΔE00 3.34

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4245D9 #D9D642

analogous

#4290D9 #4245D9 #8A42D9

triadic

#4245D9 #D94245 #45D942

tetradic

#4245D9 #D94290 #D9D642 #42D98A

square

#4245D9 #D94290 #D9D642 #42D98A

split-complementary

#4245D9 #D98A42 #90D942

monochromatic

#1B1D86 #2528B9 #4245D9 #7577E3 #A8A9ED

Accessibility & contrast

On white

6.81

#4245D9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#4245D9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4245D9

6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4245D9	#FFFFFF	#000000	##FFFFFF
##4245D9	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)

#0062DE

Deuteranopia (green-blind)

#0054D6

Tritanopia (blue-blind)

#006D8A

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #4245d9;
/* rgb */ color: rgb(66, 69, 217);
/* oklch */ color: oklch(49.0% 0.220 273.9);

Tailwind

colors: {
  custom: {
    50: '#8a79e6',
    500: '#4245d9',
    950: '#000000',
  },
}

SCSS

$custom: #4245d9;
$custom-light: #8a79e6;
$custom-dark: #000000;

JSON

{
  "hex": "#4245d9",
  "rgb": {
    "r": 66,
    "g": 69,
    "b": 217
  },
  "hsl": {
    "h": 238.808,
    "s": 66.52,
    "l": 55.49
  },
  "oklch": {
    "l": 0.48967,
    "c": 0.21953,
    "h": 273.9
  },
  "luminance": 0.10424
}

Semantic roles & 50–950 ramp

primary

#4245D9

secondary

#DBDA9C

accent

#E63EE9

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0D0916

muted

#7E7B84

Preview Lab

Preview with #4245D9

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

Preview Lab → · Contrast checker → · Palette generator →