#638F4E
Closest named color: Light Forest Green (#4F9153). oklch(60.2% 0.105 136.2), rgb(99, 143, 78).
Aa
Black text reads best on this color (5.56:1).
About this color
#638F4E is a medium-dark, moderately saturated green. In OKLCH its lightness is 60%, its chroma 0.105 and its hue 136°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Forest Green (#4F9153), ΔE 0.020 away. Black text reads best on it, at 5.56:1.
| Hue family | Greens |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.105) |
| Temperature | in between |
| Nearest name | Light Forest Green (#4F9153) |
| Black text | 5.56:1 |
| White text | 3.77:1 |
Values
| HEX | #638F4E |
| RGB | rgb(99, 143, 78) |
| HSL | hsl(101, 29%, 43%) |
| OKLCH | oklch(60.2% 0.105 136.2) |
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.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #638F4E | 3.77:1 | AA large text | Lc -70.7 | Content text, not long reading |
| Black text on #638F4E | 5.56:1 | AA | Lc 38.9 | Non-text elements, placeholder text |
| #638F4E text on white | 3.77:1 | AA large text | Lc 65.2 | Content text, not long reading |
| #638F4E text on black | 5.56:1 | AA | Lc -36.5 | 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 500.
-
Step 50
50
#F3F7F2
oklch(97.2% 0.008 139.4)
-
Step 100
100
#E5ECE3
oklch(93.5% 0.014 138.7)
-
Step 200
200
#D1DECB
oklch(88.6% 0.029 135.6)
-
Step 300
300
#B2C9A8
oklch(81% 0.052 136.2)
-
Step 400
400
#89AD79
oklch(70.7% 0.083 136.3)
-
Step 500
500 (this color)
#638F4E
oklch(60.2% 0.105 136.2)
-
Step 600
600
#53823B
oklch(55.6% 0.114 136.1)
-
Step 700
700
#436E2D
oklch(49.1% 0.106 136.3)
-
Step 800
800
#385A26
oklch(42.8% 0.089 135.9)
-
Step 900
900
#304A24
oklch(37.8% 0.069 136.5)
-
Step 950
950
#1C2B15
oklch(26.9% 0.044 136.3)
#638F4E 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.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #938649 | 0.068 |
| Deuteranopia (no green cones) | #8D8252 | 0.068 |
| Tritanopia (no blue cones) | #628B7F | 0.073 |
| Achromatopsia (no color) | #838383 | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #638F4E
#638F4E
oklch(60.2% 0.105 136.2)
- #996CAB
#996CAB
oklch(60.1% 0.106 316)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #638F4E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Forest Green #4F9153 ΔE 0.020
- Moss Green #658B38 ΔE 0.023
- Fern Green #548D44 ΔE 0.023
- Drab Green #749551 ΔE 0.029
- Khaki Green #728639 ΔE 0.030
- Swamp #698339 ΔE 0.035
- Camo #7F8F4E ΔE 0.036
- Mossy Green #638B27 ΔE 0.037
Use #638F4E 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.