#243C60#243C60

#243C60 is a dark, moderate blue. Relative luminance 0.045; OKLCH L 35.5% C 0.070 H 258.3°. Best body text is #FFFFFF at 11.11:1 contrast (WCAG AA passes).

Color values

HEX	#243C60
RGB	rgb(36, 60, 96)
HSL	hsl(216, 45%, 26%)
HSV	hsv(216, 63%, 38%)
CMYK	cmyk(62.5%, 37.5%, 0%, 62.4%)
CIE-LAB	lab(25.11, 3.07, -24.17)
CIE-LCH	lch(25.11, 24.37, 277.23°)
OKLab	oklab(35.52% -0.0142 -0.0684)
OKLCH	oklch(35.52% 0.07 258.3)
XYZ	xyz(4.4540, 4.4509, 11.6885)
Luminance	0.0445 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243C60 #604824

analogous

#245A60 #243C60 #2A2460

triadic

#243C60 #60243C #3C6024

tetradic

#243C60 #60245A #604824 #24602A

square

#243C60 #60245A #604824 #24602A

split-complementary

#243C60 #602A24 #5A6024

monochromatic

#080E16 #132033 #243C60 #35588D #4574B9

Accessibility & contrast

On white

11.11

#243C60 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#243C60 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243C60

11.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243C60	#FFFFFF	#000000	##FFFFFF
##243C60	1.00	11.11	1.89	11.11
#FFFFFF	11.11	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D3F61

Deuteranopia (green-blind)

#25395F

Tritanopia (blue-blind)

#004449

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #243c60;
/* rgb */ color: rgb(36, 60, 96);
/* oklch */ color: oklch(35.5% 0.070 258.3);

Tailwind

colors: {
  custom: {
    50: '#64718d',
    500: '#243c60',
    950: '#000000',
  },
}

SCSS

$custom: #243c60;
$custom-light: #64718d;
$custom-dark: #000000;

JSON

{
  "hex": "#243c60",
  "rgb": {
    "r": 36,
    "g": 60,
    "b": 96
  },
  "hsl": {
    "h": 216,
    "s": 45.455,
    "l": 25.882
  },
  "oklch": {
    "l": 0.35517,
    "c": 0.06983,
    "h": 258.3
  },
  "luminance": 0.04451
}

Semantic roles & 50–950 ramp

primary

#243C60

secondary

#94774C

accent

#A153D5

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06070C

muted

#7A7A7D

Preview Lab

Preview with #243C60

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

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