#288D2D

Closest named color: Forest Green (#228B22). oklch(56.6% 0.162 143.7), rgb(40, 141, 45).

Aa

Black text reads best on this color (4.93:1).

About this color

#288D2D is a medium-dark, vivid green. In OKLCH its lightness is 57%, its chroma 0.162 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Forest Green (#228B22), ΔE 0.011 away. Black text reads best on it, at 4.93:1.

Hue familyGreens
Lightnessmedium-dark (57%)
Chromavivid (0.162)
Temperaturein between
Nearest nameForest Green (#228B22)
Black text4.93:1
White text4.25:1

Values

HEX#288D2D
RGBrgb(40, 141, 45)
HSLhsl(123, 56%, 35%)
OKLCHoklch(56.6% 0.162 143.7)

Contrast

WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.

PairWCAG 2ResultAPCAAPCA guidance
White text on #288D2D 4.25:1 AA large text Lc -74.4 Content text, not long reading
Black text on #288D2D 4.93:1 AA Lc 35.2 Non-text elements, placeholder text
#288D2D text on white 4.25:1 AA large text Lc 68.9 Content text, not long reading
#288D2D text on black 4.93:1 AA Lc -32.7 Non-text elements, placeholder text

Tints and shades

A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.

  1. Step 50

    50

    #F2F7F1

    oklch(97.1% 0.01 140.5)

  2. Step 100

    100

    #E2EEE1

    oklch(93.7% 0.021 143.2)

  3. Step 200

    200

    #CAE1C9

    oklch(88.6% 0.041 144.1)

  4. Step 300

    300

    #A5CDA3

    oklch(80.8% 0.072 143.7)

  5. Step 400

    400

    #72B371

    oklch(70.6% 0.116 143.9)

  6. Step 500

    500

    #49A04A

    oklch(63.2% 0.149 143.8)

  7. Step 600

    600 (this color)

    #288D2D

    oklch(56.6% 0.162 143.7)

  8. Step 700

    700

    #14751C

    oklch(49.1% 0.15 143.7)

  9. Step 800

    800

    #165F1A

    oklch(42.6% 0.124 143.7)

  10. Step 900

    900

    #1B4E1C

    oklch(37.7% 0.097 143.7)

  11. Step 950

    950

    #112E11

    oklch(27% 0.062 143.6)

Export this scale for Tailwind in the Tailwind colors tool

#288D2D with color blindness

Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.

VisionSeen asShift (ΔE)
Protanopia (no red cones)#9080200.118
Deuteranopia (no green cones)#8478360.117
Tritanopia (no blue cones)#0589790.101
Achromatopsia (no color)#7B7B7B0.163

Harmonies

Hue rotations in OKLCH that keep this color's lightness and chroma.

Complementary

The opposite hue (180°).

  • #288D2D

    #288D2D

    oklch(56.6% 0.162 143.7)

  • #A24FAB

    #A24FAB

    oklch(56.5% 0.161 323.6)

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

  • #288D2D

    #288D2D

    oklch(56.6% 0.162 143.7)

  • #767D00

    #767D00

    oklch(56.5% 0.127 113.6)

  • #008A71

    #008A71

    oklch(56.5% 0.108 174)

Open the analogous palette in the generator

Split complementary

The two hues beside the complement (150° and 210°).

  • #288D2D

    #288D2D

    oklch(56.6% 0.162 143.7)

  • #7D5ECB

    #7D5ECB

    oklch(56.6% 0.163 293.7)

  • #BA447D

    #BA447D

    oklch(56.5% 0.162 353.6)

Open the split complementary palette in the generator

Triadic

Three hues spaced 120° apart.

  • #288D2D

    #288D2D

    oklch(56.6% 0.162 143.7)

  • #4370D4

    #4370D4

    oklch(56.6% 0.162 263.8)

  • #C34545

    #C34545

    oklch(56.6% 0.162 23.8)

Open the triadic palette in the generator

Square

Four hues spaced 90° apart.

  • #288D2D

    #288D2D

    oklch(56.6% 0.162 143.7)

  • #0080B0

    #0080B0

    oklch(56.5% 0.118 233.8)

  • #A24FAB

    #A24FAB

    oklch(56.5% 0.161 323.6)

  • #B45A00

    #B45A00

    oklch(56.6% 0.142 53.9)

Open the square palette in the generator

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #288D2D, closest first.

No curated palette has a color within ΔE 0.04 of #288D2D.

Similar named colors

The eight closest entries in our named color list, with their ΔE distance.

Use #288D2D in your product

Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.