#42497F#42497F

#42497F is a dark, moderate blue. Relative luminance 0.075; OKLCH L 42.6% C 0.090 H 276.3°. Best body text is #FFFFFF at 8.43:1 contrast (WCAG AA passes).

Color values

HEX	#42497F
RGB	rgb(66, 73, 127)
HSL	hsl(233, 32%, 38%)
HSV	hsv(233, 48%, 50%)
CMYK	cmyk(48%, 42.5%, 0%, 50.2%)
CIE-LAB	lab(32.82, 12.80, -31.50)
CIE-LCH	lch(32.82, 34.00, 292.11°)
OKLab	oklab(42.57% 0.0099 -0.089)
OKLCH	oklch(42.57% 0.09 276.3)
XYZ	xyz(8.4589, 7.4552, 21.0678)
Luminance	0.0746 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42497F #7F7842

analogous

#42677F #42497F #59427F

triadic

#42497F #7F4249 #497F42

tetradic

#42497F #7F4267 #7F7842 #427F59

square

#42497F #7F4267 #7F7842 #427F59

split-complementary

#42497F #7F5942 #677F42

monochromatic

#181B2E #2D3257 #42497F #5760A7 #7F86BC

Accessibility & contrast

On white

8.43

#42497F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#42497F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42497F

8.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42497F	#FFFFFF	#000000	##FFFFFF
##42497F	1.00	8.43	2.49	8.43
#FFFFFF	8.43	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#345081

Deuteranopia (green-blind)

#2F4B7E

Tritanopia (blue-blind)

#2C545E

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #42497f;
/* rgb */ color: rgb(66, 73, 127);
/* oklch */ color: oklch(42.6% 0.090 276.3);

Tailwind

colors: {
  custom: {
    50: '#7a7ba4',
    500: '#42497f',
    950: '#000000',
  },
}

SCSS

$custom: #42497f;
$custom-light: #7a7ba4;
$custom-dark: #000000;

JSON

{
  "hex": "#42497f",
  "rgb": {
    "r": 66,
    "g": 73,
    "b": 127
  },
  "hsl": {
    "h": 233.115,
    "s": 31.606,
    "l": 37.843
  },
  "oklch": {
    "l": 0.42568,
    "c": 0.08958,
    "h": 276.3
  },
  "luminance": 0.07456
}

Semantic roles & 50–950 ramp

primary

#42497F

secondary

#A7A275

accent

#BC60C8

background

#F7F7FA

surface

#EEEDF4

border

#C9C8CE

text

#09090F

muted

#7B7B7F

Preview Lab

Preview with #42497F

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

Preview Lab → · Contrast checker → · Palette generator →