#242D8B#242D8B

#242D8B is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.7% C 0.154 H 271.7°. Best body text is #FFFFFF at 11.52:1 contrast (WCAG AA passes).

Color values

HEX	#242D8B
RGB	rgb(36, 45, 139)
HSL	hsl(235, 59%, 34%)
HSV	hsv(235, 74%, 55%)
CMYK	cmyk(74.1%, 67.6%, 0%, 45.5%)
CIE-LAB	lab(24.05, 29.99, -53.23)
CIE-LCH	lch(24.05, 61.09, 299.40°)
OKLab	oklab(35.74% 0.0044 -0.1539)
OKLCH	oklch(35.74% 0.154 271.7)
XYZ	xyz(6.3246, 4.1153, 24.8821)
Luminance	0.0412 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#242D8B #8B8224

analogous

#24618B #242D8B #4F248B

triadic

#242D8B #8B242D #2D8B24

tetradic

#242D8B #8B2461 #8B8224 #248B4F

square

#242D8B #8B2461 #8B8224 #248B4F

split-complementary

#242D8B #8B4F24 #618B24

monochromatic

#0B0E2A #171D5A #242D8B #313DBC #5661D3

Accessibility & contrast

On white

11.52

#242D8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#242D8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #242D8B

11.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##242D8B	#FFFFFF	#000000	##FFFFFF
##242D8B	1.00	11.52	1.82	11.52
#FFFFFF	11.52	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E8E

Deuteranopia (green-blind)

#003489

Tritanopia (blue-blind)

#004658

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #242d8b;
/* rgb */ color: rgb(36, 45, 139);
/* oklch */ color: oklch(35.7% 0.154 271.7);

Tailwind

colors: {
  custom: {
    50: '#6f66ae',
    500: '#242d8b',
    950: '#000000',
  },
}

SCSS

$custom: #242d8b;
$custom-light: #6f66ae;
$custom-dark: #000000;

JSON

{
  "hex": "#242d8b",
  "rgb": {
    "r": 36,
    "g": 45,
    "b": 139
  },
  "hsl": {
    "h": 234.757,
    "s": 58.857,
    "l": 34.314
  },
  "oklch": {
    "l": 0.35739,
    "c": 0.15392,
    "h": 271.7
  },
  "luminance": 0.04116
}

Semantic roles & 50–950 ramp

primary

#242D8B

secondary

#B7AF53

accent

#D446E2

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #242D8B

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

Preview Lab → · Contrast checker → · Palette generator →