#42499A#42499A

#42499A is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.4% C 0.130 H 276.0°. Best body text is #FFFFFF at 7.92:1 contrast (WCAG AA passes).

Color values

HEX	#42499A
RGB	rgb(66, 73, 154)
HSL	hsl(235, 40%, 43%)
HSV	hsv(235, 57%, 60%)
CMYK	cmyk(57.1%, 52.6%, 0%, 39.6%)
CIE-LAB	lab(34.51, 21.89, -45.34)
CIE-LCH	lch(34.51, 50.35, 295.78°)
OKLab	oklab(44.39% 0.0136 -0.1296)
OKLCH	oklch(44.39% 0.13 276)
XYZ	xyz(10.4602, 8.2557, 31.6079)
Luminance	0.0826 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42499A #9A9342

analogous

#42759A #42499A #67429A

triadic

#42499A #9A4249 #499A42

tetradic

#42499A #9A4275 #9A9342 #429A67

square

#42499A #9A4275 #9A9342 #429A67

split-complementary

#42499A #9A6742 #759A42

monochromatic

#1D2044 #30356F #42499A #5F66BA #8A8FCD

Accessibility & contrast

On white

7.92

#42499A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#42499A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42499A

7.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42499A	#FFFFFF	#000000	##FFFFFF
##42499A	1.00	7.92	2.65	7.92
#FFFFFF	7.92	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D559D

Deuteranopia (green-blind)

#0C4E98

Tritanopia (blue-blind)

#115B6A

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #42499a;
/* rgb */ color: rgb(66, 73, 154);
/* oklch */ color: oklch(44.4% 0.130 276.0);

Tailwind

colors: {
  custom: {
    50: '#7e7bb8',
    500: '#42499a',
    950: '#000000',
  },
}

SCSS

$custom: #42499a;
$custom-light: #7e7bb8;
$custom-dark: #000000;

JSON

{
  "hex": "#42499a",
  "rgb": {
    "r": 66,
    "g": 73,
    "b": 154
  },
  "hsl": {
    "h": 235.227,
    "s": 40,
    "l": 43.137
  },
  "oklch": {
    "l": 0.44394,
    "c": 0.13036,
    "h": 276
  },
  "luminance": 0.08256
}

Semantic roles & 50–950 ramp

primary

#42499A

secondary

#B8B380

accent

#C658D0

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0A0911

muted

#7C7B80

Preview Lab

Preview with #42499A

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

Preview Lab → · Contrast checker → · Palette generator →