#242A8B#242A8B

#242A8B is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.2% C 0.158 H 272.3°. Best body text is #FFFFFF at 11.80:1 contrast (WCAG AA passes).

Color values

HEX	#242A8B
RGB	rgb(36, 42, 139)
HSL	hsl(237, 59%, 34%)
HSV	hsv(237, 74%, 55%)
CMYK	cmyk(74.1%, 69.8%, 0%, 45.5%)
CIE-LAB	lab(23.32, 31.95, -54.42)
CIE-LCH	lch(23.32, 63.11, 300.41°)
OKLab	oklab(35.21% 0.0064 -0.1574)
OKLCH	oklch(35.21% 0.158 272.3)
XYZ	xyz(6.2141, 3.8944, 24.8453)
Luminance	0.0389 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#242A8B #8B8524

analogous

#245E8B #242A8B #52248B

triadic

#242A8B #8B242A #2A8B24

tetradic

#242A8B #8B245E #8B8524 #248B52

square

#242A8B #8B245E #8B8524 #248B52

split-complementary

#242A8B #8B5224 #5E8B24

monochromatic

#0B0D2A #171B5A #242A8B #3139BC #565DD3

Accessibility & contrast

On white

11.80

#242A8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#242A8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #242A8B

11.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##242A8B	#FFFFFF	#000000	##FFFFFF
##242A8B	1.00	11.80	1.78	11.80
#FFFFFF	11.80	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8E

Deuteranopia (green-blind)

#003389

Tritanopia (blue-blind)

#004457

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #242a8b;
/* rgb */ color: rgb(36, 42, 139);
/* oklch */ color: oklch(35.2% 0.158 272.3);

Tailwind

colors: {
  custom: {
    50: '#6f64ae',
    500: '#242a8b',
    950: '#000000',
  },
}

SCSS

$custom: #242a8b;
$custom-light: #6f64ae;
$custom-dark: #000000;

JSON

{
  "hex": "#242a8b",
  "rgb": {
    "r": 36,
    "g": 42,
    "b": 139
  },
  "hsl": {
    "h": 236.505,
    "s": 58.857,
    "l": 34.314
  },
  "oklch": {
    "l": 0.35209,
    "c": 0.1575,
    "h": 272.3
  },
  "luminance": 0.03895
}

Semantic roles & 50–950 ramp

primary

#242A8B

secondary

#B7B253

accent

#D946E2

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080510

muted

#7B7A7F

Preview Lab

Preview with #242A8B

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

Preview Lab → · Contrast checker → · Palette generator →