#243D7F#243D7F

#243D7F is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.9% C 0.116 H 265.6°. Best body text is #FFFFFF at 10.25:1 contrast (WCAG AA passes).

Color values

HEX	#243D7F
RGB	rgb(36, 61, 127)
HSL	hsl(224, 56%, 32%)
HSV	hsv(224, 72%, 50%)
CMYK	cmyk(71.7%, 52%, 0%, 50.2%)
CIE-LAB	lab(27.42, 14.40, -40.25)
CIE-LCH	lch(27.42, 42.75, 289.68°)
OKLab	oklab(37.94% -0.009 -0.1155)
OKLCH	oklch(37.94% 0.116 265.6)
XYZ	xyz(6.2257, 5.2442, 20.7587)
Luminance	0.0524 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243D7F #7F6624

analogous

#246B7F #243D7F #38247F

triadic

#243D7F #7F243D #3D7F24

tetradic

#243D7F #7F246B #7F6624 #247F38

square

#243D7F #7F246B #7F6624 #247F38

split-complementary

#243D7F #7F3824 #6B7F24

monochromatic

#090F20 #16264F #243D7F #3254AF #5072CD

Accessibility & contrast

On white

10.25

#243D7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#243D7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243D7F

10.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243D7F	#FFFFFF	#000000	##FFFFFF
##243D7F	1.00	10.25	2.05	10.25
#FFFFFF	10.25	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#174581

Deuteranopia (green-blind)

#003D7E

Tritanopia (blue-blind)

#004D58

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #243d7f;
/* rgb */ color: rgb(36, 61, 127);
/* oklch */ color: oklch(37.9% 0.116 265.6);

Tailwind

colors: {
  custom: {
    50: '#6b72a5',
    500: '#243d7f',
    950: '#000000',
  },
}

SCSS

$custom: #243d7f;
$custom-light: #6b72a5;
$custom-dark: #000000;

JSON

{
  "hex": "#243d7f",
  "rgb": {
    "r": 36,
    "g": 61,
    "b": 127
  },
  "hsl": {
    "h": 223.516,
    "s": 55.828,
    "l": 31.961
  },
  "oklch": {
    "l": 0.37942,
    "c": 0.11589,
    "h": 265.6
  },
  "luminance": 0.05245
}

Semantic roles & 50–950 ramp

primary

#243D7F

secondary

#B1964E

accent

#B649DF

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #243D7F

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

Preview Lab → · Contrast checker → · Palette generator →