#423FCF#423FCF

#423FCF is a mid, highly saturated blue. Relative luminance 0.092; OKLCH L 47.1% C 0.214 H 275.3°. Best body text is #FFFFFF at 7.39:1 contrast (WCAG AA passes).

Color values

HEX	#423FCF
RGB	rgb(66, 63, 207)
HSL	hsl(241, 60%, 53%)
HSV	hsv(241, 70%, 81%)
CMYK	cmyk(68.1%, 69.6%, 0%, 18.8%)
CIE-LAB	lab(36.40, 46.03, -73.62)
CIE-LCH	lch(36.40, 86.83, 302.02°)
OKLab	oklab(47.11% 0.0198 -0.2127)
OKLCH	oklch(47.11% 0.214 275.3)
XYZ	xyz(15.2830, 9.2169, 59.9930)
Luminance	0.0922 (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

#423FCF #CCCF3F

analogous

#3F84CF #423FCF #8A3FCF

triadic

#423FCF #CF423F #3FCF42

tetradic

#423FCF #CF3F84 #CCCF3F #3FCF8A

square

#423FCF #CF3F84 #CCCF3F #3FCF8A

split-complementary

#423FCF #CF8A3F #84CF3F

monochromatic

#1F1E76 #2C2AA7 #423FCF #7270DB #A2A1E7

Accessibility & contrast

On white

7.39

#423FCF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#423FCF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423FCF

7.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423FCF	#FFFFFF	#000000	##FFFFFF
##423FCF	1.00	7.39	2.84	7.39
#FFFFFF	7.39	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CD3

Deuteranopia (green-blind)

#004FCC

Tritanopia (blue-blind)

#006682

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #423fcf;
/* rgb */ color: rgb(66, 63, 207);
/* oklch */ color: oklch(47.1% 0.214 275.3);

Tailwind

colors: {
  custom: {
    50: '#8975df',
    500: '#423fcf',
    950: '#000000',
  },
}

SCSS

$custom: #423fcf;
$custom-light: #8975df;
$custom-dark: #000000;

JSON

{
  "hex": "#423fcf",
  "rgb": {
    "r": 66,
    "g": 63,
    "b": 207
  },
  "hsl": {
    "h": 241.25,
    "s": 60,
    "l": 52.941
  },
  "oklch": {
    "l": 0.4711,
    "c": 0.21363,
    "h": 275.3
  },
  "luminance": 0.09218
}

Semantic roles & 50–950 ramp

primary

#423FCF

secondary

#D3D496

accent

#E345E0

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #423FCF

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

Preview Lab → · Contrast checker → · Palette generator →