#243D7E#243D7E

#243D7E is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.9% C 0.114 H 265.4°. Best body text is #FFFFFF at 10.27:1 contrast (WCAG AA passes).

Color values

HEX	#243D7E
RGB	rgb(36, 61, 126)
HSL	hsl(223, 56%, 32%)
HSV	hsv(223, 71%, 49%)
CMYK	cmyk(71.4%, 51.6%, 0%, 50.6%)
CIE-LAB	lab(27.35, 14.01, -39.74)
CIE-LCH	lch(27.35, 42.13, 289.42°)
OKLab	oklab(37.87% -0.0091 -0.114)
OKLCH	oklch(37.87% 0.114 265.4)
XYZ	xyz(6.1609, 5.2183, 20.4172)
Luminance	0.0522 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243D7E #7E6524

analogous

#246A7E #243D7E #38247E

triadic

#243D7E #7E243D #3D7E24

tetradic

#243D7E #7E246A #7E6524 #247E38

square

#243D7E #7E246A #7E6524 #247E38

split-complementary

#243D7E #7E3824 #6A7E24

monochromatic

#090F1F #16264E #243D7E #3254AE #5072CD

Accessibility & contrast

On white

10.27

#243D7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#243D7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243D7E

10.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243D7E	#FFFFFF	#000000	##FFFFFF
##243D7E	1.00	10.27	2.04	10.27
#FFFFFF	10.27	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#184580

Deuteranopia (green-blind)

#003D7D

Tritanopia (blue-blind)

#004C57

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #243d7e;
/* rgb */ color: rgb(36, 61, 126);
/* oklch */ color: oklch(37.9% 0.114 265.4);

Tailwind

colors: {
  custom: {
    50: '#6b72a4',
    500: '#243d7e',
    950: '#000000',
  },
}

SCSS

$custom: #243d7e;
$custom-light: #6b72a4;
$custom-dark: #000000;

JSON

{
  "hex": "#243d7e",
  "rgb": {
    "r": 36,
    "g": 61,
    "b": 126
  },
  "hsl": {
    "h": 223.333,
    "s": 55.556,
    "l": 31.765
  },
  "oklch": {
    "l": 0.37865,
    "c": 0.11439,
    "h": 265.4
  },
  "luminance": 0.05219
}

Semantic roles & 50–950 ramp

primary

#243D7E

secondary

#B0954E

accent

#B549DF

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #243D7E

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

Preview Lab → · Contrast checker → · Palette generator →