#424EA1#424EA1

#424EA1 is a mid, vivid blue. Relative luminance 0.092; OKLCH L 45.9% C 0.134 H 273.8°. Best body text is #FFFFFF at 7.40:1 contrast (WCAG AA passes).

Color values

HEX	#424EA1
RGB	rgb(66, 78, 161)
HSL	hsl(232, 42%, 45%)
HSV	hsv(232, 59%, 63%)
CMYK	cmyk(59%, 51.6%, 0%, 36.9%)
CIE-LAB	lab(36.33, 21.05, -46.63)
CIE-LCH	lch(36.33, 51.16, 294.29°)
OKLab	oklab(45.92% 0.0088 -0.1334)
OKLCH	oklch(45.92% 0.134 273.8)
XYZ	xyz(11.4021, 9.1794, 34.8823)
Luminance	0.0918 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424EA1 #A19542

analogous

#427EA1 #424EA1 #6642A1

triadic

#424EA1 #A1424E #4EA142

tetradic

#424EA1 #A1427E #A19542 #42A166

square

#424EA1 #A1427E #A19542 #42A166

split-complementary

#424EA1 #A16642 #7EA142

monochromatic

#1E244A #303976 #424EA1 #626DBF #8D96D0

Accessibility & contrast

On white

7.40

#424EA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#424EA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424EA1

7.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424EA1	#FFFFFF	#000000	##FFFFFF
##424EA1	1.00	7.40	2.84	7.40
#FFFFFF	7.40	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#215AA4

Deuteranopia (green-blind)

#0E529F

Tritanopia (blue-blind)

#006170

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #424ea1;
/* rgb */ color: rgb(66, 78, 161);
/* oklch */ color: oklch(45.9% 0.134 273.8);

Tailwind

colors: {
  custom: {
    50: '#7f7fbd',
    500: '#424ea1',
    950: '#000000',
  },
}

SCSS

$custom: #424ea1;
$custom-light: #7f7fbd;
$custom-dark: #000000;

JSON

{
  "hex": "#424ea1",
  "rgb": {
    "r": 66,
    "g": 78,
    "b": 161
  },
  "hsl": {
    "h": 232.421,
    "s": 41.85,
    "l": 44.51
  },
  "oklch": {
    "l": 0.45915,
    "c": 0.13367,
    "h": 273.8
  },
  "luminance": 0.0918
}

Semantic roles & 50–950 ramp

primary

#424EA1

secondary

#BBB483

accent

#C256D2

background

#F8F7FB

surface

#EFEEF7

border

#CAC9D0

text

#0B0A12

muted

#7C7C81

Preview Lab

Preview with #424EA1

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

Preview Lab → · Contrast checker → · Palette generator →