#243F69#243F69

#243F69 is a dark, moderate blue. Relative luminance 0.050; OKLCH L 36.8% C 0.080 H 258.9°. Best body text is #FFFFFF at 10.55:1 contrast (WCAG AA passes).

Color values

HEX	#243F69
RGB	rgb(36, 63, 105)
HSL	hsl(217, 49%, 28%)
HSV	hsv(217, 66%, 41%)
CMYK	cmyk(65.7%, 40%, 0%, 58.8%)
CIE-LAB	lab(26.59, 4.44, -27.64)
CIE-LCH	lch(26.59, 27.99, 279.13°)
OKLab	oklab(36.84% -0.0153 -0.0785)
OKLCH	oklch(36.84% 0.08 258.9)
XYZ	xyz(5.0540, 4.9495, 14.0509)
Luminance	0.0495 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243F69 #694E24

analogous

#246169 #243F69 #2C2469

triadic

#243F69 #69243F #3F6924

tetradic

#243F69 #692461 #694E24 #24692C

square

#243F69 #692461 #694E24 #24692C

split-complementary

#243F69 #692C24 #616924

monochromatic

#080E17 #14243B #243F69 #345A97 #4777C0

Accessibility & contrast

On white

10.55

#243F69 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#243F69 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243F69

10.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243F69	#FFFFFF	#000000	##FFFFFF
##243F69	1.00	10.55	1.99	10.55
#FFFFFF	10.55	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D426B

Deuteranopia (green-blind)

#233C68

Tritanopia (blue-blind)

#00494F

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #243f69;
/* rgb */ color: rgb(36, 63, 105);
/* oklch */ color: oklch(36.8% 0.080 258.9);

Tailwind

colors: {
  custom: {
    50: '#667394',
    500: '#243f69',
    950: '#000000',
  },
}

SCSS

$custom: #243f69;
$custom-light: #667394;
$custom-dark: #000000;

JSON

{
  "hex": "#243f69",
  "rgb": {
    "r": 36,
    "g": 63,
    "b": 105
  },
  "hsl": {
    "h": 216.522,
    "s": 48.936,
    "l": 27.647
  },
  "oklch": {
    "l": 0.36839,
    "c": 0.07995,
    "h": 258.9
  },
  "luminance": 0.0495
}

Semantic roles & 50–950 ramp

primary

#243F69

secondary

#9C7D4D

accent

#A34FD8

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#06080D

muted

#7A7B7E

Preview Lab

Preview with #243F69

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

Preview Lab → · Contrast checker → · Palette generator →