#42487D#42487D

#42487D is a dark, moderate blue. Relative luminance 0.073; OKLCH L 42.2% C 0.088 H 277.0°. Best body text is #FFFFFF at 8.55:1 contrast (WCAG AA passes).

Color values

HEX	#42487D
RGB	rgb(66, 72, 125)
HSL	hsl(234, 31%, 37%)
HSV	hsv(234, 47%, 49%)
CMYK	cmyk(47.2%, 42.4%, 0%, 51%)
CIE-LAB	lab(32.42, 12.80, -30.90)
CIE-LCH	lch(32.42, 33.44, 292.51°)
OKLab	oklab(42.23% 0.0108 -0.0873)
OKLCH	oklch(42.23% 0.088 277)
XYZ	xyz(8.2647, 7.2732, 20.3665)
Luminance	0.0727 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42487D #7D7742

analogous

#42667D #42487D #59427D

triadic

#42487D #7D4248 #487D42

tetradic

#42487D #7D4266 #7D7742 #427D59

square

#42487D #7D4266 #7D7742 #427D59

split-complementary

#42487D #7D5942 #667D42

monochromatic

#181A2D #2D3155 #42487D #575FA5 #7E85BB

Accessibility & contrast

On white

8.55

#42487D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#42487D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42487D

8.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42487D	#FFFFFF	#000000	##FFFFFF
##42487D	1.00	8.55	2.45	8.55
#FFFFFF	8.55	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#344F7F

Deuteranopia (green-blind)

#304A7C

Tritanopia (blue-blind)

#2D535C

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #42487d;
/* rgb */ color: rgb(66, 72, 125);
/* oklch */ color: oklch(42.2% 0.088 277.0);

Tailwind

colors: {
  custom: {
    50: '#7a7aa3',
    500: '#42487d',
    950: '#000000',
  },
}

SCSS

$custom: #42487d;
$custom-light: #7a7aa3;
$custom-dark: #000000;

JSON

{
  "hex": "#42487d",
  "rgb": {
    "r": 66,
    "g": 72,
    "b": 125
  },
  "hsl": {
    "h": 233.898,
    "s": 30.89,
    "l": 37.451
  },
  "oklch": {
    "l": 0.42225,
    "c": 0.08793,
    "h": 277
  },
  "luminance": 0.07274
}

Semantic roles & 50–950 ramp

primary

#42487D

secondary

#A6A175

accent

#BD61C7

background

#F7F7FA

surface

#EEEDF3

border

#C9C8CD

text

#09090F

muted

#7B7B7F

Preview Lab

Preview with #42487D

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

Preview Lab → · Contrast checker → · Palette generator →