#423DCF#423DCF

#423DCF is a mid, highly saturated blue. Relative luminance 0.090; OKLCH L 46.8% C 0.216 H 275.6°. Best body text is #FFFFFF at 7.50:1 contrast (WCAG AA passes).

Color values

HEX	#423DCF
RGB	rgb(66, 61, 207)
HSL	hsl(242, 60%, 53%)
HSV	hsv(242, 71%, 81%)
CMYK	cmyk(68.1%, 70.5%, 0%, 18.8%)
CIE-LAB	lab(35.98, 47.18, -74.30)
CIE-LCH	lch(35.98, 88.02, 302.41°)
OKLab	oklab(46.81% 0.0211 -0.2147)
OKLCH	oklch(46.81% 0.216 275.6)
XYZ	xyz(15.1743, 8.9993, 59.9568)
Luminance	0.0900 (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

#423DCF #CACF3D

analogous

#3D81CF #423DCF #8B3DCF

triadic

#423DCF #CF423D #3DCF42

tetradic

#423DCF #CF3D81 #CACF3D #3DCF8B

square

#423DCF #CF3D81 #CACF3D #3DCF8B

split-complementary

#423DCF #CF8B3D #81CF3D

monochromatic

#201D75 #2D29A6 #423DCF #726EDB #A29FE7

Accessibility & contrast

On white

7.50

#423DCF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#423DCF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423DCF

7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423DCF	#FFFFFF	#000000	##FFFFFF
##423DCF	1.00	7.50	2.80	7.50
#FFFFFF	7.50	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BD3

Deuteranopia (green-blind)

#004ECC

Tritanopia (blue-blind)

#006582

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #423dcf;
/* rgb */ color: rgb(66, 61, 207);
/* oklch */ color: oklch(46.8% 0.216 275.6);

Tailwind

colors: {
  custom: {
    50: '#8974df',
    500: '#423dcf',
    950: '#000000',
  },
}

SCSS

$custom: #423dcf;
$custom-light: #8974df;
$custom-dark: #000000;

JSON

{
  "hex": "#423dcf",
  "rgb": {
    "r": 66,
    "g": 61,
    "b": 207
  },
  "hsl": {
    "h": 242.055,
    "s": 60.331,
    "l": 52.549
  },
  "oklch": {
    "l": 0.46812,
    "c": 0.21573,
    "h": 275.6
  },
  "luminance": 0.09001
}

Semantic roles & 50–950 ramp

primary

#423DCF

secondary

#D1D494

accent

#E344DE

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #423DCF

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

Preview Lab → · Contrast checker → · Palette generator →