#243B59#243B59

#243B59 is a dark, moderate cyan. Relative luminance 0.042; OKLCH L 34.8% C 0.060 H 255.5°. Best body text is #FFFFFF at 11.38:1 contrast (WCAG AA passes).

Color values

HEX	#243B59
RGB	rgb(36, 59, 89)
HSL	hsl(214, 42%, 25%)
HSV	hsv(214, 60%, 35%)
CMYK	cmyk(59.6%, 33.7%, 0%, 65.1%)
CIE-LAB	lab(24.40, 1.14, -20.73)
CIE-LCH	lch(24.40, 20.76, 273.15°)
OKLab	oklab(34.84% -0.015 -0.0584)
OKLCH	oklch(34.84% 0.06 255.5)
XYZ	xyz(4.0941, 4.2239, 10.0488)
Luminance	0.0422 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243B59 #594224

analogous

#245659 #243B59 #282459

triadic

#243B59 #59243B #3B5924

tetradic

#243B59 #592456 #594224 #245928

square

#243B59 #592456 #594224 #245928

split-complementary

#243B59 #592824 #565924

monochromatic

#090E16 #121E2D #243B59 #365885 #4775B0

Accessibility & contrast

On white

11.38

#243B59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#243B59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243B59

11.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243B59	#FFFFFF	#000000	##FFFFFF
##243B59	1.00	11.38	1.84	11.38
#FFFFFF	11.38	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F3D5A

Deuteranopia (green-blind)

#283858

Tritanopia (blue-blind)

#034246

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #243b59;
/* rgb */ color: rgb(36, 59, 89);
/* oklch */ color: oklch(34.8% 0.060 255.5);

Tailwind

colors: {
  custom: {
    50: '#637088',
    500: '#243b59',
    950: '#000000',
  },
}

SCSS

$custom: #243b59;
$custom-light: #637088;
$custom-dark: #000000;

JSON

{
  "hex": "#243b59",
  "rgb": {
    "r": 36,
    "g": 59,
    "b": 89
  },
  "hsl": {
    "h": 213.962,
    "s": 42.4,
    "l": 24.51
  },
  "oklch": {
    "l": 0.34835,
    "c": 0.06028,
    "h": 255.5
  },
  "luminance": 0.04224
}

Semantic roles & 50–950 ramp

primary

#243B59

secondary

#8D714C

accent

#9C56D2

background

#F6F6F8

surface

#EBECEF

border

#C6C7CA

text

#05070B

muted

#7A7A7C

Preview Lab

Preview with #243B59

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

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