#688D20
Closest named color: Olive Drab (#6B8E23). oklch(59.5% 0.139 127), rgb(104, 141, 32).
Aa
Black text reads best on this color (5.41:1).
About this color
#688D20 is a medium-dark, moderately saturated green. In OKLCH its lightness is 59%, its chroma 0.139 and its hue 127°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Olive Drab (#6B8E23), ΔE 0.005 away. Black text reads best on it, at 5.41:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.139) |
| Temperature | in between |
| Nearest name | Olive Drab (#6B8E23) |
| Black text | 5.41:1 |
| White text | 3.87:1 |
Values
| HEX | #688D20 |
| RGB | rgb(104, 141, 32) |
| HSL | hsl(80, 63%, 34%) |
| OKLCH | oklch(59.5% 0.139 127) |
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 #688D20 | 3.87:1 | AA large text | Lc -71.5 | Content text, not long reading |
| Black text on #688D20 | 5.41:1 | AA | Lc 38.0 | Non-text elements, placeholder text |
| #688D20 text on white | 3.87:1 | AA large text | Lc 66.0 | Content text, not long reading |
| #688D20 text on black | 5.41:1 | AA | Lc -35.6 | 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
#F4F7F0
oklch(97.2% 0.01 125.7)
-
Step 100
100
#E6EDDF
oklch(93.7% 0.02 128.7)
-
Step 200
200
#D2DEC4
oklch(88.4% 0.037 127.4)
-
Step 300
300
#B5C99A
oklch(80.9% 0.067 126.6)
-
Step 400
400
#8EAD60
oklch(70.6% 0.109 127)
-
Step 500
500 (this color)
#688D20
oklch(59.5% 0.139 127)
-
Step 600
600
#5C8200
oklch(55.7% 0.144 127.3)
-
Step 700
700
#4D6D00
oklch(49.1% 0.127 127.1)
-
Step 800
800
#3E5900
oklch(42.6% 0.11 127.2)
-
Step 900
900
#344A09
oklch(37.7% 0.091 127.4)
-
Step 950
950
#1F2B09
oklch(26.9% 0.056 126.5)
#688D20 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) | #958306 | 0.066 |
| Deuteranopia (no green cones) | #90812B | 0.068 |
| Tritanopia (no blue cones) | #6C8678 | 0.111 |
| Achromatopsia (no color) | #818181 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #688D20
#688D20
oklch(59.5% 0.139 127)
- #9565BF
#9565BF
oklch(59.5% 0.141 307.3)
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 #688D20, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Drab #6B8E23 ΔE 0.005
- Mossy Green #638B27 ΔE 0.010
- Dark Yellow Green #728F02 ΔE 0.017
- Sap Green #5C8B15 ΔE 0.018
- Moss Green #658B38 ΔE 0.021
- Swamp Green #748500 ΔE 0.025
- Fern Green #548D44 ΔE 0.034
- Khaki Green #728639 ΔE 0.036
Use #688D20 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.