#243D66#243D66

#243D66 is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.1% C 0.078 H 259.8°. Best body text is #FFFFFF at 10.86:1 contrast (WCAG AA passes).

Color values

HEX	#243D66
RGB	rgb(36, 61, 102)
HSL	hsl(217, 48%, 27%)
HSV	hsv(217, 65%, 40%)
CMYK	cmyk(64.7%, 40.2%, 0%, 60%)
CIE-LAB	lab(25.78, 4.66, -27.00)
CIE-LCH	lch(25.78, 27.40, 279.79°)
OKLab	oklab(36.15% -0.0137 -0.0766)
OKLCH	oklch(36.15% 0.078 259.8)
XYZ	xyz(4.7937, 4.6714, 13.2169)
Luminance	0.0467 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243D66 #664D24

analogous

#245E66 #243D66 #2C2466

triadic

#243D66 #66243D #3D6624

tetradic

#243D66 #66245E #664D24 #24662C

square

#243D66 #66245E #664D24 #24662C

split-complementary

#243D66 #662C24 #5E6624

monochromatic

#080E17 #142239 #243D66 #345893 #4774BE

Accessibility & contrast

On white

10.86

#243D66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#243D66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243D66

10.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243D66	#FFFFFF	#000000	##FFFFFF
##243D66	1.00	10.86	1.93	10.86
#FFFFFF	10.86	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B4068

Deuteranopia (green-blind)

#223A65

Tritanopia (blue-blind)

#00464C

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #243d66;
/* rgb */ color: rgb(36, 61, 102);
/* oklch */ color: oklch(36.1% 0.078 259.8);

Tailwind

colors: {
  custom: {
    50: '#657292',
    500: '#243d66',
    950: '#000000',
  },
}

SCSS

$custom: #243d66;
$custom-light: #657292;
$custom-dark: #000000;

JSON

{
  "hex": "#243d66",
  "rgb": {
    "r": 36,
    "g": 61,
    "b": 102
  },
  "hsl": {
    "h": 217.273,
    "s": 47.826,
    "l": 27.059
  },
  "oklch": {
    "l": 0.3615,
    "c": 0.07784,
    "h": 259.8
  },
  "luminance": 0.04672
}

Semantic roles & 50–950 ramp

primary

#243D66

secondary

#997C4C

accent

#A450D7

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #243D66

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

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