#243D7D#243D7D

#243D7D is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.8% C 0.113 H 265.3°. Best body text is #FFFFFF at 10.30:1 contrast (WCAG AA passes).

Color values

HEX	#243D7D
RGB	rgb(36, 61, 125)
HSL	hsl(223, 55%, 32%)
HSV	hsv(223, 71%, 49%)
CMYK	cmyk(71.2%, 51.2%, 0%, 51%)
CIE-LAB	lab(27.28, 13.61, -39.22)
CIE-LCH	lch(27.28, 41.52, 289.14°)
OKLab	oklab(37.79% -0.0092 -0.1125)
OKLCH	oklch(37.79% 0.113 265.3)
XYZ	xyz(6.0967, 5.1926, 20.0790)
Luminance	0.0519 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243D7D #7D6424

analogous

#246A7D #243D7D #38247D

triadic

#243D7D #7D243D #3D7D24

tetradic

#243D7D #7D246A #7D6424 #247D38

square

#243D7D #7D246A #7D6424 #247D38

split-complementary

#243D7D #7D3824 #6A7D24

monochromatic

#090F1E #16264D #243D7D #3254AD #4F72CC

Accessibility & contrast

On white

10.30

#243D7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#243D7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243D7D

10.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243D7D	#FFFFFF	#000000	##FFFFFF
##243D7D	1.00	10.30	2.04	10.30
#FFFFFF	10.30	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#19457F

Deuteranopia (green-blind)

#003D7C

Tritanopia (blue-blind)

#004C57

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #243d7d;
/* rgb */ color: rgb(36, 61, 125);
/* oklch */ color: oklch(37.8% 0.113 265.3);

Tailwind

colors: {
  custom: {
    50: '#6a72a3',
    500: '#243d7d',
    950: '#000000',
  },
}

SCSS

$custom: #243d7d;
$custom-light: #6a72a3;
$custom-dark: #000000;

JSON

{
  "hex": "#243d7d",
  "rgb": {
    "r": 36,
    "g": 61,
    "b": 125
  },
  "hsl": {
    "h": 223.146,
    "s": 55.28,
    "l": 31.569
  },
  "oklch": {
    "l": 0.37788,
    "c": 0.11291,
    "h": 265.3
  },
  "luminance": 0.05193
}

Semantic roles & 50–950 ramp

primary

#243D7D

secondary

#AF944D

accent

#B549DF

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #243D7D

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

Preview Lab → · Contrast checker → · Palette generator →