#668F25
Closest named color: Olive Drab (#6B8E23). oklch(59.9% 0.14 128.6), rgb(102, 143, 37).
Aa
Black text reads best on this color (5.52:1).
About this color
#668F25 is a medium-dark, vivid green. In OKLCH its lightness is 60%, its chroma 0.140 and its hue 129°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Olive Drab (#6B8E23), ΔE 0.006 away. Black text reads best on it, at 5.52:1.
| Hue family | Greens |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.140) |
| Temperature | in between |
| Nearest name | Olive Drab (#6B8E23) |
| Black text | 5.52:1 |
| White text | 3.80:1 |
Values
| HEX | #668F25 |
| RGB | rgb(102, 143, 37) |
| HSL | hsl(83, 59%, 35%) |
| OKLCH | oklch(59.9% 0.14 128.6) |
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 #668F25 | 3.80:1 | AA large text | Lc -70.9 | Content text, not long reading |
| Black text on #668F25 | 5.52:1 | AA | Lc 38.7 | Non-text elements, placeholder text |
| #668F25 text on white | 3.80:1 | AA large text | Lc 65.4 | Content text, not long reading |
| #668F25 text on black | 5.52:1 | AA | Lc -36.3 | 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
#F3F7F0
oklch(97.1% 0.01 131.4)
-
Step 100
100
#E6EDDF
oklch(93.7% 0.02 128.7)
-
Step 200
200
#D1DEC4
oklch(88.4% 0.038 128.9)
-
Step 300
300
#B3CA9B
oklch(81% 0.069 129.1)
-
Step 400
400
#8CAE62
oklch(70.8% 0.11 128.6)
-
Step 500
500 (this color)
#668F25
oklch(59.9% 0.14 128.6)
-
Step 600
600
#598200
oklch(55.5% 0.146 128.3)
-
Step 700
700
#4A6E00
oklch(49.2% 0.13 128.6)
-
Step 800
800
#3C5A00
oklch(42.8% 0.113 128.5)
-
Step 900
900
#324A0B
oklch(37.6% 0.091 128.8)
-
Step 950
950
#1E2C09
oklch(27.1% 0.059 128.4)
#668F25 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) | #968511 | 0.069 |
| Deuteranopia (no green cones) | #90822F | 0.070 |
| Tritanopia (no blue cones) | #69887A | 0.110 |
| Achromatopsia (no color) | #838383 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #668F25
#668F25
oklch(59.9% 0.14 128.6)
- #9866BF
#9866BF
oklch(59.9% 0.14 308.7)
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 #668F25, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Drab #6B8E23 ΔE 0.006
- Mossy Green #638B27 ΔE 0.013
- Dark Yellow Green #728F02 ΔE 0.018
- Sap Green #5C8B15 ΔE 0.020
- Moss Green #658B38 ΔE 0.022
- Swamp Green #748500 ΔE 0.030
- Fern Green #548D44 ΔE 0.033
- Khaki Green #728639 ΔE 0.039
Use #668F25 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.