#424CA0#424CA0

#424CA0 is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.4% C 0.135 H 274.6°. Best body text is #FFFFFF at 7.57:1 contrast (WCAG AA passes).

Color values

HEX	#424CA0
RGB	rgb(66, 76, 160)
HSL	hsl(234, 42%, 44%)
HSV	hsv(234, 59%, 63%)
CMYK	cmyk(58.8%, 52.5%, 0%, 37.3%)
CIE-LAB	lab(35.72, 22.00, -47.01)
CIE-LCH	lch(35.72, 51.90, 295.08°)
OKLab	oklab(45.44% 0.0108 -0.1345)
OKLCH	oklch(45.44% 0.135 274.6)
XYZ	xyz(11.1743, 8.8644, 34.3730)
Luminance	0.0887 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424CA0 #A09642

analogous

#427BA0 #424CA0 #6742A0

triadic

#424CA0 #A0424C #4CA042

tetradic

#424CA0 #A0427B #A09642 #42A067

square

#424CA0 #A0427B #A09642 #42A067

split-complementary

#424CA0 #A06742 #7BA042

monochromatic

#1E2349 #303775 #424CA0 #616BBE #8D94D0

Accessibility & contrast

On white

7.57

#424CA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#424CA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424CA0

7.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424CA0	#FFFFFF	#000000	##FFFFFF
##424CA0	1.00	7.57	2.77	7.57
#FFFFFF	7.57	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D58A3

Deuteranopia (green-blind)

#07509E

Tritanopia (blue-blind)

#005F6E

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #424ca0;
/* rgb */ color: rgb(66, 76, 160);
/* oklch */ color: oklch(45.4% 0.135 274.6);

Tailwind

colors: {
  custom: {
    50: '#7f7dbd',
    500: '#424ca0',
    950: '#000000',
  },
}

SCSS

$custom: #424ca0;
$custom-light: #7f7dbd;
$custom-dark: #000000;

JSON

{
  "hex": "#424ca0",
  "rgb": {
    "r": 66,
    "g": 76,
    "b": 160
  },
  "hsl": {
    "h": 233.617,
    "s": 41.593,
    "l": 44.314
  },
  "oklch": {
    "l": 0.45437,
    "c": 0.13495,
    "h": 274.6
  },
  "luminance": 0.08865
}

Semantic roles & 50–950 ramp

primary

#424CA0

secondary

#BBB583

accent

#C456D1

background

#F8F7FB

surface

#EFEEF6

border

#CAC9D0

text

#0B0912

muted

#7C7B81

Preview Lab

Preview with #424CA0

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

Preview Lab → · Contrast checker → · Palette generator →