#424B91#424B91

#424B91 is a dark, moderate blue. Relative luminance 0.082; OKLCH L 44.2% C 0.114 H 275.2°. Best body text is #FFFFFF at 7.93:1 contrast (WCAG AA passes).

Color values

HEX	#424B91
RGB	rgb(66, 75, 145)
HSL	hsl(233, 37%, 41%)
HSV	hsv(233, 54%, 57%)
CMYK	cmyk(54.5%, 48.3%, 0%, 43.1%)
CIE-LAB	lab(34.47, 17.51, -39.95)
CIE-LCH	lch(34.47, 43.62, 293.66°)
OKLab	oklab(44.17% 0.0104 -0.1138)
OKLCH	oklch(44.17% 0.114 275.2)
XYZ	xyz(9.8720, 8.2341, 27.8517)
Luminance	0.0824 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424B91 #918842

analogous

#427391 #424B91 #614291

triadic

#424B91 #91424B #4B9142

tetradic

#424B91 #914273 #918842 #429161

square

#424B91 #914273 #918842 #429161

split-complementary

#424B91 #916142 #739142

monochromatic

#1C1F3D #2F3567 #424B91 #5C66B5 #868DC8

Accessibility & contrast

On white

7.93

#424B91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#424B91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424B91

7.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424B91	#FFFFFF	#000000	##FFFFFF
##424B91	1.00	7.93	2.65	7.93
#FFFFFF	7.93	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B5494

Deuteranopia (green-blind)

#224E8F

Tritanopia (blue-blind)

#1D5A67

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #424b91;
/* rgb */ color: rgb(66, 75, 145);
/* oklch */ color: oklch(44.2% 0.114 275.2);

Tailwind

colors: {
  custom: {
    50: '#7c7db2',
    500: '#424b91',
    950: '#000000',
  },
}

SCSS

$custom: #424b91;
$custom-light: #7c7db2;
$custom-dark: #000000;

JSON

{
  "hex": "#424b91",
  "rgb": {
    "r": 66,
    "g": 75,
    "b": 145
  },
  "hsl": {
    "h": 233.165,
    "s": 37.441,
    "l": 41.373
  },
  "oklch": {
    "l": 0.44172,
    "c": 0.11424,
    "h": 275.2
  },
  "luminance": 0.08235
}

Semantic roles & 50–950 ramp

primary

#424B91

secondary

#B3AC7C

accent

#C05ACD

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#0A0911

muted

#7C7B80

Preview Lab

Preview with #424B91

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

Preview Lab → · Contrast checker → · Palette generator →