#42499C#42499C

#42499C is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.5% C 0.133 H 275.9°. Best body text is #FFFFFF at 7.88:1 contrast (WCAG AA passes).

Color values

HEX	#42499C
RGB	rgb(66, 73, 156)
HSL	hsl(235, 41%, 44%)
HSV	hsv(235, 58%, 61%)
CMYK	cmyk(57.7%, 53.2%, 0%, 38.8%)
CIE-LAB	lab(34.65, 22.58, -46.33)
CIE-LCH	lch(34.65, 51.54, 295.98°)
OKLab	oklab(44.54% 0.0138 -0.1325)
OKLCH	oklch(44.54% 0.133 275.9)
XYZ	xyz(10.6281, 8.3229, 32.4925)
Luminance	0.0832 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42499C #9C9542

analogous

#42769C #42499C #68429C

triadic

#42499C #9C4249 #499C42

tetradic

#42499C #9C4276 #9C9542 #429C68

square

#42499C #9C4276 #9C9542 #429C68

split-complementary

#42499C #9C6842 #769C42

monochromatic

#1E2146 #303571 #42499C #6067BC #8B90CE

Accessibility & contrast

On white

7.88

#42499C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#42499C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42499C

7.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42499C	#FFFFFF	#000000	##FFFFFF
##42499C	1.00	7.88	2.66	7.88
#FFFFFF	7.88	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A559F

Deuteranopia (green-blind)

#054E9A

Tritanopia (blue-blind)

#0D5C6B

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #42499c;
/* rgb */ color: rgb(66, 73, 156);
/* oklch */ color: oklch(44.5% 0.133 275.9);

Tailwind

colors: {
  custom: {
    50: '#7e7bba',
    500: '#42499c',
    950: '#000000',
  },
}

SCSS

$custom: #42499c;
$custom-light: #7e7bba;
$custom-dark: #000000;

JSON

{
  "hex": "#42499c",
  "rgb": {
    "r": 66,
    "g": 73,
    "b": 156
  },
  "hsl": {
    "h": 235.333,
    "s": 40.541,
    "l": 43.529
  },
  "oklch": {
    "l": 0.44541,
    "c": 0.13327,
    "h": 275.9
  },
  "luminance": 0.08324
}

Semantic roles & 50–950 ramp

primary

#42499C

secondary

#B9B481

accent

#C757D0

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0B0912

muted

#7C7B81

Preview Lab

Preview with #42499C

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

Preview Lab → · Contrast checker → · Palette generator →