#42499D#42499D

#42499D is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.6% C 0.135 H 275.9°. Best body text is #FFFFFF at 7.86:1 contrast (WCAG AA passes).

Color values

HEX	#42499D
RGB	rgb(66, 73, 157)
HSL	hsl(235, 41%, 44%)
HSV	hsv(235, 58%, 62%)
CMYK	cmyk(58%, 53.5%, 0%, 38.4%)
CIE-LAB	lab(34.72, 22.93, -46.82)
CIE-LCH	lch(34.72, 52.13, 296.09°)
OKLab	oklab(44.62% 0.0139 -0.134)
OKLCH	oklch(44.62% 0.135 275.9)
XYZ	xyz(10.7132, 8.3569, 32.9403)
Luminance	0.0836 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42499D #9D9642

analogous

#42769D #42499D #68429D

triadic

#42499D #9D4249 #499D42

tetradic

#42499D #9D4276 #9D9642 #429D68

square

#42499D #9D4276 #9D9642 #429D68

split-complementary

#42499D #9D6842 #769D42

monochromatic

#1E2147 #303572 #42499D #6067BC #8B90CE

Accessibility & contrast

On white

7.86

#42499D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#42499D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42499D

7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42499D	#FFFFFF	#000000	##FFFFFF
##42499D	1.00	7.86	2.67	7.86
#FFFFFF	7.86	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1856A0

Deuteranopia (green-blind)

#024E9B

Tritanopia (blue-blind)

#0A5C6C

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #42499d;
/* rgb */ color: rgb(66, 73, 157);
/* oklch */ color: oklch(44.6% 0.135 275.9);

Tailwind

colors: {
  custom: {
    50: '#7f7bba',
    500: '#42499d',
    950: '#000000',
  },
}

SCSS

$custom: #42499d;
$custom-light: #7f7bba;
$custom-dark: #000000;

JSON

{
  "hex": "#42499d",
  "rgb": {
    "r": 66,
    "g": 73,
    "b": 157
  },
  "hsl": {
    "h": 235.385,
    "s": 40.807,
    "l": 43.725
  },
  "oklch": {
    "l": 0.44615,
    "c": 0.13471,
    "h": 275.9
  },
  "luminance": 0.08358
}

Semantic roles & 50–950 ramp

primary

#42499D

secondary

#B9B582

accent

#C757D1

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0B0912

muted

#7C7B81

Preview Lab

Preview with #42499D

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

Preview Lab → · Contrast checker → · Palette generator →