#243C40#243C40

#243C40 is a dark, muted teal. Relative luminance 0.040; OKLCH L 33.8% C 0.031 H 209.1°. Best body text is #FFFFFF at 11.70:1 contrast (WCAG AA passes).

Color values

HEX	#243C40
RGB	rgb(36, 60, 64)
HSL	hsl(189, 28%, 20%)
HSV	hsv(189, 44%, 25%)
CMYK	cmyk(43.8%, 6.2%, 0%, 74.9%)
CIE-LAB	lab(23.59, -8.07, -5.42)
CIE-LCH	lch(23.59, 9.72, 213.87°)
OKLab	oklab(33.82% -0.0267 -0.0149)
OKLCH	oklch(33.82% 0.031 209.1)
XYZ	xyz(3.2685, 3.9767, 5.4448)
Luminance	0.0398 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243C40 #402824

analogous

#244036 #243C40 #242E40

triadic

#243C40 #40243C #3C4024

tetradic

#243C40 #362440 #402824 #2E4024

square

#243C40 #362440 #402824 #2E4024

split-complementary

#243C40 #40242E #403624

monochromatic

#0B1214 #0E1719 #243C40 #3A6167 #50858E

Accessibility & contrast

On white

11.70

#243C40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#243C40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243C40

11.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243C40	#FFFFFF	#000000	##FFFFFF
##243C40	1.00	11.70	1.80	11.70
#FFFFFF	11.70	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#383A40

Deuteranopia (green-blind)

#333740

Tritanopia (blue-blind)

#193E3D

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #243c40;
/* rgb */ color: rgb(36, 60, 64);
/* oklch */ color: oklch(33.8% 0.031 209.1);

Tailwind

colors: {
  custom: {
    50: '#607174',
    500: '#243c40',
    950: '#000000',
  },
}

SCSS

$custom: #243c40;
$custom-light: #607174;
$custom-dark: #000000;

JSON

{
  "hex": "#243c40",
  "rgb": {
    "r": 36,
    "g": 60,
    "b": 64
  },
  "hsl": {
    "h": 188.571,
    "s": 28,
    "l": 19.608
  },
  "oklch": {
    "l": 0.33823,
    "c": 0.0306,
    "h": 209.1
  },
  "luminance": 0.03977
}

Semantic roles & 50–950 ramp

primary

#243C40

secondary

#73524D

accent

#7163C4

background

#F5F6F7

surface

#E9ECED

border

#C5C7C8

text

#050708

muted

#797A7B

Preview Lab

Preview with #243C40

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

Preview Lab → · Contrast checker → · Palette generator →