#423D80#423D80

#423D80 is a dark, moderate blue. Relative luminance 0.061; OKLCH L 40.1% C 0.109 H 283.7°. Best body text is #FFFFFF at 9.50:1 contrast (WCAG AA passes).

Color values

HEX	#423D80
RGB	rgb(66, 61, 128)
HSL	hsl(244, 35%, 37%)
HSV	hsv(244, 52%, 50%)
CMYK	cmyk(48.4%, 52.3%, 0%, 49.8%)
CIE-LAB	lab(29.55, 21.05, -37.34)
CIE-LCH	lch(29.55, 42.87, 299.41°)
OKLab	oklab(40.11% 0.0259 -0.1062)
OKLCH	oklch(40.11% 0.109 283.7)
XYZ	xyz(7.8106, 6.0539, 21.1749)
Luminance	0.0605 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423D80 #7B803D

analogous

#3D5980 #423D80 #643D80

triadic

#423D80 #80423D #3D8042

tetradic

#423D80 #803D59 #7B803D #3D8064

square

#423D80 #803D59 #7B803D #3D8064

split-complementary

#423D80 #80643D #59803D

monochromatic

#17152D #2D2957 #423D80 #5751A9 #7E78BF

Accessibility & contrast

On white

9.50

#423D80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#423D80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423D80

9.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423D80	#FFFFFF	#000000	##FFFFFF
##423D80	1.00	9.50	2.21	9.50
#FFFFFF	9.50	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E4882

Deuteranopia (green-blind)

#1B437F

Tritanopia (blue-blind)

#2D4B58

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #423d80;
/* rgb */ color: rgb(66, 61, 128);
/* oklch */ color: oklch(40.1% 0.109 283.7);

Tailwind

colors: {
  custom: {
    50: '#7b72a5',
    500: '#423d80',
    950: '#000000',
  },
}

SCSS

$custom: #423d80;
$custom-light: #7b72a5;
$custom-dark: #000000;

JSON

{
  "hex": "#423d80",
  "rgb": {
    "r": 66,
    "g": 61,
    "b": 128
  },
  "hsl": {
    "h": 244.478,
    "s": 35.45,
    "l": 37.059
  },
  "oklch": {
    "l": 0.40107,
    "c": 0.10932,
    "h": 283.7
  },
  "luminance": 0.06054
}

Semantic roles & 50–950 ramp

primary

#423D80

secondary

#A5A970

accent

#CB5CC3

background

#F7F6FA

surface

#EEECF4

border

#C9C7CE

text

#0A080F

muted

#7C7B7F

Preview Lab

Preview with #423D80

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

Preview Lab → · Contrast checker → · Palette generator →