#42507D#42507D

#42507D is a dark, moderate blue. Relative luminance 0.084; OKLCH L 44.0% C 0.077 H 269.9°. Best body text is #FFFFFF at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#42507D
RGB	rgb(66, 80, 125)
HSL	hsl(226, 31%, 37%)
HSV	hsv(226, 47%, 49%)
CMYK	cmyk(47.2%, 36%, 0%, 51%)
CIE-LAB	lab(34.75, 7.57, -27.22)
CIE-LCH	lch(34.75, 28.25, 285.54°)
OKLab	oklab(44.02% -0.0001 -0.0765)
OKLCH	oklch(44.02% 0.077 269.9)
XYZ	xyz(8.8159, 8.3757, 20.5502)
Luminance	0.0838 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42507D #7D6F42

analogous

#426D7D #42507D #52427D

triadic

#42507D #7D4250 #507D42

tetradic

#42507D #7D426D #7D6F42 #427D52

square

#42507D #7D426D #7D6F42 #427D52

split-complementary

#42507D #7D5242 #6D7D42

monochromatic

#181D2D #2D3655 #42507D #576AA5 #7E8DBB

Accessibility & contrast

On white

7.85

#42507D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#42507D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42507D

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42507D	#FFFFFF	#000000	##FFFFFF
##42507D	1.00	7.85	2.68	7.85
#FFFFFF	7.85	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#40547F

Deuteranopia (green-blind)

#3A4F7C

Tritanopia (blue-blind)

#2C5960

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #42507d;
/* rgb */ color: rgb(66, 80, 125);
/* oklch */ color: oklch(44.0% 0.077 269.9);

Tailwind

colors: {
  custom: {
    50: '#7a80a3',
    500: '#42507d',
    950: '#000000',
  },
}

SCSS

$custom: #42507d;
$custom-light: #7a80a3;
$custom-dark: #000000;

JSON

{
  "hex": "#42507d",
  "rgb": {
    "r": 66,
    "g": 80,
    "b": 125
  },
  "hsl": {
    "h": 225.763,
    "s": 30.89,
    "l": 37.451
  },
  "oklch": {
    "l": 0.44019,
    "c": 0.07651,
    "h": 269.9
  },
  "luminance": 0.08376
}

Semantic roles & 50–950 ramp

primary

#42507D

secondary

#A69A75

accent

#AF61C7

background

#F7F7FA

surface

#EEEEF3

border

#C9C9CD

text

#090A0F

muted

#7B7C7F

Preview Lab

Preview with #42507D

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

Preview Lab → · Contrast checker → · Palette generator →