#424BA1#424BA1

#424BA1 is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.3% C 0.138 H 275.0°. Best body text is #FFFFFF at 7.63:1 contrast (WCAG AA passes).

Color values

HEX	#424BA1
RGB	rgb(66, 75, 161)
HSL	hsl(234, 42%, 45%)
HSV	hsv(234, 59%, 63%)
CMYK	cmyk(59%, 53.4%, 0%, 36.9%)
CIE-LAB	lab(35.52, 23.00, -47.93)
CIE-LCH	lch(35.52, 53.16, 295.64°)
OKLab	oklab(45.31% 0.012 -0.1372)
OKLCH	oklch(45.31% 0.138 275)
XYZ	xyz(11.1938, 8.7628, 34.8128)
Luminance	0.0876 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424BA1 #A19842

analogous

#427BA1 #424BA1 #6942A1

triadic

#424BA1 #A1424B #4BA142

tetradic

#424BA1 #A1427B #A19842 #42A169

square

#424BA1 #A1427B #A19842 #42A169

split-complementary

#424BA1 #A16942 #7BA142

monochromatic

#1E234A #303776 #424BA1 #626ABF #8D93D0

Accessibility & contrast

On white

7.63

#424BA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#424BA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424BA1

7.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424BA1	#FFFFFF	#000000	##FFFFFF
##424BA1	1.00	7.63	2.75	7.63
#FFFFFF	7.63	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1858A4

Deuteranopia (green-blind)

#00509F

Tritanopia (blue-blind)

#005F6E

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #424ba1;
/* rgb */ color: rgb(66, 75, 161);
/* oklch */ color: oklch(45.3% 0.138 275.0);

Tailwind

colors: {
  custom: {
    50: '#7f7dbd',
    500: '#424ba1',
    950: '#000000',
  },
}

SCSS

$custom: #424ba1;
$custom-light: #7f7dbd;
$custom-dark: #000000;

JSON

{
  "hex": "#424ba1",
  "rgb": {
    "r": 66,
    "g": 75,
    "b": 161
  },
  "hsl": {
    "h": 234.316,
    "s": 41.85,
    "l": 44.51
  },
  "oklch": {
    "l": 0.4531,
    "c": 0.13775,
    "h": 275
  },
  "luminance": 0.08764
}

Semantic roles & 50–950 ramp

primary

#424BA1

secondary

#BBB683

accent

#C656D2

background

#F8F7FB

surface

#EFEEF7

border

#CAC9D0

text

#0B0912

muted

#7C7B81

Preview Lab

Preview with #424BA1

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

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