#424E9B#424E9B

#424E9B is a mid, vivid blue. Relative luminance 0.090; OKLCH L 45.5% C 0.125 H 273.7°. Best body text is #FFFFFF at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#424E9B
RGB	rgb(66, 78, 155)
HSL	hsl(232, 40%, 43%)
HSV	hsv(232, 57%, 61%)
CMYK	cmyk(57.4%, 49.7%, 0%, 39.2%)
CIE-LAB	lab(35.93, 18.97, -43.66)
CIE-LCH	lch(35.93, 47.60, 293.49°)
OKLab	oklab(45.49% 0.0081 -0.1246)
OKLCH	oklch(45.49% 0.125 273.7)
XYZ	xyz(10.8856, 8.9728, 32.1623)
Luminance	0.0897 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424E9B #9B8F42

analogous

#427A9B #424E9B #62429B

triadic

#424E9B #9B424E #4E9B42

tetradic

#424E9B #9B427A #9B8F42 #429B62

square

#424E9B #9B427A #9B8F42 #429B62

split-complementary

#424E9B #9B6242 #7A9B42

monochromatic

#1D2345 #303870 #424E9B #5F6CBB #8A93CD

Accessibility & contrast

On white

7.51

#424E9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#424E9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424E9B

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424E9B	#FFFFFF	#000000	##FFFFFF
##424E9B	1.00	7.51	2.79	7.51
#FFFFFF	7.51	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#28589E

Deuteranopia (green-blind)

#1B5199

Tritanopia (blue-blind)

#0D5F6D

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #424e9b;
/* rgb */ color: rgb(66, 78, 155);
/* oklch */ color: oklch(45.5% 0.125 273.7);

Tailwind

colors: {
  custom: {
    50: '#7e7fb9',
    500: '#424e9b',
    950: '#000000',
  },
}

SCSS

$custom: #424e9b;
$custom-light: #7e7fb9;
$custom-dark: #000000;

JSON

{
  "hex": "#424e9b",
  "rgb": {
    "r": 66,
    "g": 78,
    "b": 155
  },
  "hsl": {
    "h": 231.91,
    "s": 40.271,
    "l": 43.333
  },
  "oklch": {
    "l": 0.45489,
    "c": 0.1249,
    "h": 273.7
  },
  "luminance": 0.08974
}

Semantic roles & 50–950 ramp

primary

#424E9B

secondary

#B8B181

accent

#C058D0

background

#F8F7FB

surface

#EFEEF6

border

#CAC9D0

text

#0A0A11

muted

#7C7C80

Preview Lab

Preview with #424E9B

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

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