#242F8D#242F8D

#242F8D is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.3% C 0.154 H 271.1°. Best body text is #FFFFFF at 11.25:1 contrast (WCAG AA passes).

Color values

HEX	#242F8D
RGB	rgb(36, 47, 141)
HSL	hsl(234, 59%, 35%)
HSV	hsv(234, 74%, 55%)
CMYK	cmyk(74.5%, 66.7%, 0%, 44.7%)
CIE-LAB	lab(24.74, 29.41, -53.34)
CIE-LCH	lch(24.74, 60.91, 298.87°)
OKLab	oklab(36.3% 0.0029 -0.1542)
OKLCH	oklch(36.3% 0.154 271.1)
XYZ	xyz(6.5502, 4.3305, 25.6848)
Luminance	0.0433 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#242F8D #8D8224

analogous

#24648D #242F8D #4D248D

triadic

#242F8D #8D242F #2F8D24

tetradic

#242F8D #8D2464 #8D8224 #248D4D

square

#242F8D #8D2464 #8D8224 #248D4D

split-complementary

#242F8D #8D4D24 #648D24

monochromatic

#0B0E2B #181F5C #242F8D #303FBE #5764D4

Accessibility & contrast

On white

11.25

#242F8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#242F8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #242F8D

11.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##242F8D	#FFFFFF	#000000	##FFFFFF
##242F8D	1.00	11.25	1.87	11.25
#FFFFFF	11.25	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004090

Deuteranopia (green-blind)

#00368B

Tritanopia (blue-blind)

#004859

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #242f8d;
/* rgb */ color: rgb(36, 47, 141);
/* oklch */ color: oklch(36.3% 0.154 271.1);

Tailwind

colors: {
  custom: {
    50: '#6f67af',
    500: '#242f8d',
    950: '#000000',
  },
}

SCSS

$custom: #242f8d;
$custom-light: #6f67af;
$custom-dark: #000000;

JSON

{
  "hex": "#242f8d",
  "rgb": {
    "r": 36,
    "g": 47,
    "b": 141
  },
  "hsl": {
    "h": 233.714,
    "s": 59.322,
    "l": 34.706
  },
  "oklch": {
    "l": 0.36298,
    "c": 0.15422,
    "h": 271.1
  },
  "luminance": 0.04331
}

Semantic roles & 50–950 ramp

primary

#242F8D

secondary

#B8AE54

accent

#D245E3

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #242F8D

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

Preview Lab → · Contrast checker → · Palette generator →