#243F21

A color in the Green family

#243f21 is a color in the Green family: RGB(36, 63, 33), HSL(114°, 31%, 19%), CMYK(43%, 0%, 48%, 75%). Closest named color: darkslategray. Contrast is 11.62:1 on white and 1.81:1 on black. See shades, harmonies and color-blindness simulation.

Color Codes

HEX#243f21
RGBrgb(36 63 33)
RGB (legacy)rgb(36, 63, 33)
RGB %rgb(14% 25% 13%)
HSLhsl(114 31% 19%)
HSV / HSBhsv(114, 48%, 25%)
HWBhwb(114 13% 75%)
CMYKcmyk(43%, 0%, 48%, 75%)
CIELAB (D50)lab(23.83 -16.17 15.02)
LCHlch(23.83 22.07 137.11)
OKLaboklab(0.3371 -0.0478 0.0375)
OKLCHoklch(0.3371 0.0607 141.9)
Decimal2375457

Properties

Color ToneGreen
Closest named colordarkslategray ΔE 8.2
Closest web-safe color#333333
Hue114°
Saturation (HSL / HSV)31% / 48%
Lightness (HSL)19%
Brightness or Value (HSV)25%
Luminance (Rec.601 / Rec.709)20% / 22%
Relative luminance (WCAG)0.0404
Red / Green / Blue36 / 63 / 33

WCAG 2.2 Contrast Ratio

On White (#ffffff)
11.62:1
AA Normal (4.5:1) · PassAA Large (3:1) · PassAAA Normal (7:1) · Pass
On Black (#000000)
1.81:1
AA Normal (4.5:1) · FailAA Large (3:1) · FailAAA Normal (7:1) · Fail
Aa Bb 123

APCA Contrast Lc (reference) — As text on white / black: Lc 96.6 / 0 · As background with white / black text: Lc -100.3 / 0

Lightness Scale (OKLCH 50–950)

Eleven steps that change only perceived lightness while keeping hue and chroma — ready to use as design-system color tokens.

Tints (mixed with white)

Shades (mixed with black)

Color Harmonies

Color Vision Deficiency Simulation

Estimated appearance of this color for people with color vision deficiencies (Machado 2009).

Similar Named Colors

Use in CSS

:root {
  --color-brand: #243f21;
  --color-brand-oklch: oklch(33.71% 0.0607 141.9);
}
.text { color: var(--color-brand); }
.background { background-color: var(--color-brand); }
.border { border: 1px solid rgb(36 63 33 / 50%); }
/* Tailwind CSS */
<div class="bg-[#243f21] text-[#243f21] border-[#243f21]">