#242F9B#242F9B

#242F9B is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.7% C 0.173 H 270.6°. Best body text is #FFFFFF at 10.74:1 contrast (WCAG AA passes).

Color values

HEX	#242F9B
RGB	rgb(36, 47, 155)
HSL	hsl(234, 62%, 37%)
HSV	hsv(234, 77%, 61%)
CMYK	cmyk(76.8%, 69.7%, 0%, 39.2%)
CIE-LAB	lab(26.08, 34.58, -59.75)
CIE-LCH	lch(26.08, 69.04, 300.06°)
OKLab	oklab(37.69% 0.0017 -0.1729)
OKLCH	oklch(37.69% 0.173 270.6)
XYZ	xyz(7.6584, 4.7738, 31.5218)
Luminance	0.0478 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#242F9B #9B9024

analogous

#246A9B #242F9B #55249B

triadic

#242F9B #9B242F #2F9B24

tetradic

#242F9B #9B246A #9B9024 #249B55

square

#242F9B #9B246A #9B9024 #249B55

split-complementary

#242F9B #9B5524 #6A9B24

monochromatic

#0D1138 #182069 #242F9B #303ECD #5F6BDA

Accessibility & contrast

On white

10.74

#242F9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#242F9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #242F9B

10.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##242F9B	#FFFFFF	#000000	##FFFFFF
##242F9B	1.00	10.74	1.96	10.74
#FFFFFF	10.74	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00439E

Deuteranopia (green-blind)

#003899

Tritanopia (blue-blind)

#004D61

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #242f9b;
/* rgb */ color: rgb(36, 47, 155);
/* oklch */ color: oklch(37.7% 0.173 270.6);

Tailwind

colors: {
  custom: {
    50: '#7368ba',
    500: '#242f9b',
    950: '#000000',
  },
}

SCSS

$custom: #242f9b;
$custom-light: #7368ba;
$custom-dark: #000000;

JSON

{
  "hex": "#242f9b",
  "rgb": {
    "r": 36,
    "g": 47,
    "b": 155
  },
  "hsl": {
    "h": 234.454,
    "s": 62.304,
    "l": 37.451
  },
  "oklch": {
    "l": 0.37687,
    "c": 0.17294,
    "h": 270.6
  },
  "luminance": 0.04775
}

Semantic roles & 50–950 ramp

primary

#242F9B

secondary

#BFB65C

accent

#D642E5

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #242F9B

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

Preview Lab → · Contrast checker → · Palette generator →