#242C8A#242C8A

#242C8A is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.5% C 0.154 H 271.9°. Best body text is #FFFFFF at 11.65:1 contrast (WCAG AA passes).

Color values

HEX	#242C8A
RGB	rgb(36, 44, 138)
HSL	hsl(235, 59%, 34%)
HSV	hsv(235, 74%, 54%)
CMYK	cmyk(73.9%, 68.1%, 0%, 45.9%)
CIE-LAB	lab(23.71, 30.28, -53.16)
CIE-LCH	lch(23.71, 61.18, 299.66°)
OKLab	oklab(35.46% 0.0052 -0.1537)
OKLCH	oklch(35.46% 0.154 271.9)
XYZ	xyz(6.2141, 4.0108, 24.4865)
Luminance	0.0401 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#242C8A #8A8224

analogous

#245F8A #242C8A #4F248A

triadic

#242C8A #8A242C #2C8A24

tetradic

#242C8A #8A245F #8A8224 #248A4F

square

#242C8A #8A245F #8A8224 #248A4F

split-complementary

#242C8A #8A4F24 #5F8A24

monochromatic

#0B0D29 #171D59 #242C8A #313BBB #565FD3

Accessibility & contrast

On white

11.65

#242C8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#242C8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #242C8A

11.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##242C8A	#FFFFFF	#000000	##FFFFFF
##242C8A	1.00	11.65	1.80	11.65
#FFFFFF	11.65	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D8D

Deuteranopia (green-blind)

#003488

Tritanopia (blue-blind)

#004557

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #242c8a;
/* rgb */ color: rgb(36, 44, 138);
/* oklch */ color: oklch(35.5% 0.154 271.9);

Tailwind

colors: {
  custom: {
    50: '#6f65ad',
    500: '#242c8a',
    950: '#000000',
  },
}

SCSS

$custom: #242c8a;
$custom-light: #6f65ad;
$custom-dark: #000000;

JSON

{
  "hex": "#242c8a",
  "rgb": {
    "r": 36,
    "g": 44,
    "b": 138
  },
  "hsl": {
    "h": 235.294,
    "s": 58.621,
    "l": 34.118
  },
  "oklch": {
    "l": 0.35461,
    "c": 0.15377,
    "h": 271.9
  },
  "luminance": 0.04011
}

Semantic roles & 50–950 ramp

primary

#242C8A

secondary

#B7AF53

accent

#D646E2

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080510

muted

#7B7A7F

Preview Lab

Preview with #242C8A

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

Preview Lab → · Contrast checker → · Palette generator →