#42499F#42499F

#42499F is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.8% C 0.138 H 275.8°. Best body text is #FFFFFF at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#42499F
RGB	rgb(66, 73, 159)
HSL	hsl(235, 41%, 44%)
HSV	hsv(235, 58%, 62%)
CMYK	cmyk(58.5%, 54.1%, 0%, 37.6%)
CIE-LAB	lab(34.85, 23.61, -47.80)
CIE-LCH	lch(34.85, 53.32, 296.29°)
OKLab	oklab(44.76% 0.014 -0.1369)
OKLCH	oklch(44.76% 0.138 275.8)
XYZ	xyz(10.8853, 8.4258, 33.8469)
Luminance	0.0843 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42499F #9F9842

analogous

#42789F #42499F #6A429F

triadic

#42499F #9F4249 #499F42

tetradic

#42499F #9F4278 #9F9842 #429F6A

square

#42499F #9F4278 #9F9842 #429F6A

split-complementary

#42499F #9F6A42 #789F42

monochromatic

#1E2149 #303574 #42499F #6168BD #8C91CF

Accessibility & contrast

On white

7.82

#42499F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#42499F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42499F

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42499F	#FFFFFF	#000000	##FFFFFF
##42499F	1.00	7.82	2.69	7.82
#FFFFFF	7.82	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1556A2

Deuteranopia (green-blind)

#004E9D

Tritanopia (blue-blind)

#045D6D

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #42499f;
/* rgb */ color: rgb(66, 73, 159);
/* oklch */ color: oklch(44.8% 0.138 275.8);

Tailwind

colors: {
  custom: {
    50: '#7f7bbc',
    500: '#42499f',
    950: '#000000',
  },
}

SCSS

$custom: #42499f;
$custom-light: #7f7bbc;
$custom-dark: #000000;

JSON

{
  "hex": "#42499f",
  "rgb": {
    "r": 66,
    "g": 73,
    "b": 159
  },
  "hsl": {
    "h": 235.484,
    "s": 41.333,
    "l": 44.118
  },
  "oklch": {
    "l": 0.44763,
    "c": 0.13759,
    "h": 275.8
  },
  "luminance": 0.08427
}

Semantic roles & 50–950 ramp

primary

#42499F

secondary

#BAB682

accent

#C857D1

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0B0912

muted

#7C7B81

Preview Lab

Preview with #42499F

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

Preview Lab → · Contrast checker → · Palette generator →