#42497D#42497D

#42497D is a dark, moderate blue. Relative luminance 0.074; OKLCH L 42.4% C 0.086 H 276.3°. Best body text is #FFFFFF at 8.47:1 contrast (WCAG AA passes).

Color values

HEX	#42497D
RGB	rgb(66, 73, 125)
HSL	hsl(233, 31%, 37%)
HSV	hsv(233, 47%, 49%)
CMYK	cmyk(47.2%, 41.6%, 0%, 51%)
CIE-LAB	lab(32.71, 12.14, -30.44)
CIE-LCH	lch(32.71, 32.77, 291.75°)
OKLab	oklab(42.45% 0.0094 -0.0859)
OKLCH	oklch(42.45% 0.086 276.3)
XYZ	xyz(8.3298, 7.4036, 20.3882)
Luminance	0.0740 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42497D #7D7642

analogous

#42677D #42497D #58427D

triadic

#42497D #7D4249 #497D42

tetradic

#42497D #7D4267 #7D7642 #427D58

square

#42497D #7D4267 #7D7642 #427D58

split-complementary

#42497D #7D5842 #677D42

monochromatic

#181A2D #2D3255 #42497D #5760A5 #7E86BB

Accessibility & contrast

On white

8.47

#42497D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#42497D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42497D

8.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42497D	#FFFFFF	#000000	##FFFFFF
##42497D	1.00	8.47	2.48	8.47
#FFFFFF	8.47	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#364F7F

Deuteranopia (green-blind)

#314B7C

Tritanopia (blue-blind)

#2D545D

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #42497d;
/* rgb */ color: rgb(66, 73, 125);
/* oklch */ color: oklch(42.4% 0.086 276.3);

Tailwind

colors: {
  custom: {
    50: '#7a7ba3',
    500: '#42497d',
    950: '#000000',
  },
}

SCSS

$custom: #42497d;
$custom-light: #7a7ba3;
$custom-dark: #000000;

JSON

{
  "hex": "#42497d",
  "rgb": {
    "r": 66,
    "g": 73,
    "b": 125
  },
  "hsl": {
    "h": 232.881,
    "s": 30.89,
    "l": 37.451
  },
  "oklch": {
    "l": 0.42445,
    "c": 0.08645,
    "h": 276.3
  },
  "luminance": 0.07404
}

Semantic roles & 50–950 ramp

primary

#42497D

secondary

#A6A075

accent

#BB61C7

background

#F7F7FA

surface

#EEEDF3

border

#C9C8CD

text

#09090F

muted

#7B7B7F

Preview Lab

Preview with #42497D

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

Preview Lab → · Contrast checker → · Palette generator →