#242C8B#242C8B

#242C8B is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.6% C 0.155 H 271.9°. Best body text is #FFFFFF at 11.61:1 contrast (WCAG AA passes).

Color values

HEX	#242C8B
RGB	rgb(36, 44, 139)
HSL	hsl(235, 59%, 34%)
HSV	hsv(235, 74%, 55%)
CMYK	cmyk(74.1%, 68.3%, 0%, 45.5%)
CIE-LAB	lab(23.80, 30.65, -53.63)
CIE-LCH	lch(23.80, 61.77, 299.75°)
OKLab	oklab(35.56% 0.0051 -0.155)
OKLCH	oklch(35.56% 0.155 271.9)
XYZ	xyz(6.2869, 4.0399, 24.8695)
Luminance	0.0404 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#242C8B #8B8324

analogous

#24608B #242C8B #50248B

triadic

#242C8B #8B242C #2C8B24

tetradic

#242C8B #8B2460 #8B8324 #248B50

square

#242C8B #8B2460 #8B8324 #248B50

split-complementary

#242C8B #8B5024 #608B24

monochromatic

#0B0D2A #171D5A #242C8B #313BBC #5660D3

Accessibility & contrast

On white

11.61

#242C8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#242C8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #242C8B

11.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##242C8B	#FFFFFF	#000000	##FFFFFF
##242C8B	1.00	11.61	1.81	11.61
#FFFFFF	11.61	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E8E

Deuteranopia (green-blind)

#003489

Tritanopia (blue-blind)

#004557

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #242c8b;
/* rgb */ color: rgb(36, 44, 139);
/* oklch */ color: oklch(35.6% 0.155 271.9);

Tailwind

colors: {
  custom: {
    50: '#6f65ae',
    500: '#242c8b',
    950: '#000000',
  },
}

SCSS

$custom: #242c8b;
$custom-light: #6f65ae;
$custom-dark: #000000;

JSON

{
  "hex": "#242c8b",
  "rgb": {
    "r": 36,
    "g": 44,
    "b": 139
  },
  "hsl": {
    "h": 235.34,
    "s": 58.857,
    "l": 34.314
  },
  "oklch": {
    "l": 0.3556,
    "c": 0.15512,
    "h": 271.9
  },
  "luminance": 0.04041
}

Semantic roles & 50–950 ramp

primary

#242C8B

secondary

#B7B053

accent

#D646E2

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080510

muted

#7B7A7F

Preview Lab

Preview with #242C8B

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

Preview Lab → · Contrast checker → · Palette generator →