#42507A#42507A

#42507A is a dark, moderate blue. Relative luminance 0.083; OKLCH L 43.9% C 0.072 H 269.3°. Best body text is #FFFFFF at 7.89:1 contrast (WCAG AA passes).

Color values

HEX	#42507A
RGB	rgb(66, 80, 122)
HSL	hsl(225, 30%, 37%)
HSV	hsv(225, 46%, 48%)
CMYK	cmyk(45.9%, 34.4%, 0%, 52.2%)
CIE-LAB	lab(34.60, 6.60, -25.60)
CIE-LCH	lch(34.60, 26.44, 284.46°)
OKLab	oklab(43.85% -0.0009 -0.0718)
OKLCH	oklch(43.85% 0.072 269.3)
XYZ	xyz(8.6272, 8.3002, 19.5561)
Luminance	0.0830 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42507A #7A6C42

analogous

#426C7A #42507A #50427A

triadic

#42507A #7A4250 #507A42

tetradic

#42507A #7A426C #7A6C42 #427A50

square

#42507A #7A426C #7A6C42 #427A50

split-complementary

#42507A #7A5042 #6C7A42

monochromatic

#171C2B #2D3652 #42507A #576AA2 #7D8CB9

Accessibility & contrast

On white

7.89

#42507A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#42507A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42507A

7.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42507A	#FFFFFF	#000000	##FFFFFF
##42507A	1.00	7.89	2.66	7.89
#FFFFFF	7.89	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#41547C

Deuteranopia (green-blind)

#3C4F79

Tritanopia (blue-blind)

#2E595F

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #42507a;
/* rgb */ color: rgb(66, 80, 122);
/* oklch */ color: oklch(43.9% 0.072 269.3);

Tailwind

colors: {
  custom: {
    50: '#7980a0',
    500: '#42507a',
    950: '#000000',
  },
}

SCSS

$custom: #42507a;
$custom-light: #7980a0;
$custom-dark: #000000;

JSON

{
  "hex": "#42507a",
  "rgb": {
    "r": 66,
    "g": 80,
    "b": 122
  },
  "hsl": {
    "h": 225,
    "s": 29.787,
    "l": 36.863
  },
  "oklch": {
    "l": 0.43851,
    "c": 0.07183,
    "h": 269.3
  },
  "luminance": 0.08301
}

Semantic roles & 50–950 ramp

primary

#42507A

secondary

#A49874

accent

#AD62C6

background

#F7F7F9

surface

#EEEEF2

border

#C9C9CC

text

#090A0F

muted

#7B7C7E

Preview Lab

Preview with #42507A

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

Preview Lab → · Contrast checker → · Palette generator →