#423BCF#423BCF

#423BCF is a mid, highly saturated blue. Relative luminance 0.088; OKLCH L 46.5% C 0.218 H 275.9°. Best body text is #FFFFFF at 7.61:1 contrast (WCAG AA passes).

Color values

HEX	#423BCF
RGB	rgb(66, 59, 207)
HSL	hsl(243, 61%, 52%)
HSV	hsv(243, 71%, 81%)
CMYK	cmyk(68.1%, 71.5%, 0%, 18.8%)
CIE-LAB	lab(35.58, 48.31, -74.97)
CIE-LCH	lch(35.58, 89.19, 302.79°)
OKLab	oklab(46.52% 0.0223 -0.2166)
OKLCH	oklch(46.52% 0.218 275.9)
XYZ	xyz(15.0695, 8.7898, 59.9218)
Luminance	0.0879 (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

#423BCF #C8CF3B

analogous

#3B7ECF #423BCF #8C3BCF

triadic

#423BCF #CF423B #3BCF42

tetradic

#423BCF #CF3B7E #C8CF3B #3BCF8C

square

#423BCF #CF3B7E #C8CF3B #3BCF8C

split-complementary

#423BCF #CF8C3B #7ECF3B

monochromatic

#201C73 #2E28A5 #423BCF #716CDB #A19DE7

Accessibility & contrast

On white

7.61

#423BCF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#423BCF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423BCF

7.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423BCF	#FFFFFF	#000000	##FFFFFF
##423BCF	1.00	7.61	2.76	7.61
#FFFFFF	7.61	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AD3

Deuteranopia (green-blind)

#004DCC

Tritanopia (blue-blind)

#006481

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #423bcf;
/* rgb */ color: rgb(66, 59, 207);
/* oklch */ color: oklch(46.5% 0.218 275.9);

Tailwind

colors: {
  custom: {
    50: '#8973df',
    500: '#423bcf',
    950: '#000000',
  },
}

SCSS

$custom: #423bcf;
$custom-light: #8973df;
$custom-dark: #000000;

JSON

{
  "hex": "#423bcf",
  "rgb": {
    "r": 66,
    "g": 59,
    "b": 207
  },
  "hsl": {
    "h": 242.838,
    "s": 60.656,
    "l": 52.157
  },
  "oklch": {
    "l": 0.46522,
    "c": 0.21779,
    "h": 275.9
  },
  "luminance": 0.08791
}

Semantic roles & 50–950 ramp

primary

#423BCF

secondary

#D0D393

accent

#E444DC

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #423BCF

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

Preview Lab → · Contrast checker → · Palette generator →