#688F28
Closest named color: Olive Drab (#6B8E23). oklch(60% 0.137 128.1), rgb(104, 143, 40).
Aa
Black text reads best on this color (5.54:1).
About this color
#688F28 is a medium-dark, moderately saturated green. In OKLCH its lightness is 60%, its chroma 0.137 and its hue 128°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Olive Drab (#6B8E23), ΔE 0.004 away. Black text reads best on it, at 5.54:1.
| Hue family | Greens |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.137) |
| Temperature | in between |
| Nearest name | Olive Drab (#6B8E23) |
| Black text | 5.54:1 |
| White text | 3.78:1 |
Values
| HEX | #688F28 |
| RGB | rgb(104, 143, 40) |
| HSL | hsl(83, 56%, 36%) |
| OKLCH | oklch(60% 0.137 128.1) |
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 #688F28 | 3.78:1 | AA large text | Lc -70.7 | Content text, not long reading |
| Black text on #688F28 | 5.54:1 | AA | Lc 38.8 | Non-text elements, placeholder text |
| #688F28 text on white | 3.78:1 | AA large text | Lc 65.2 | Content text, not long reading |
| #688F28 text on black | 5.54:1 | AA | Lc -36.4 | 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
#B4C99B
oklch(80.8% 0.067 127.8)
-
Step 400
400
#8DAD63
oklch(70.6% 0.106 128)
-
Step 500
500 (this color)
#688F28
oklch(60% 0.137 128.1)
-
Step 600
600
#5A8200
oklch(55.6% 0.145 128)
-
Step 700
700
#4B6D00
oklch(49% 0.128 127.9)
-
Step 800
800
#3D5A00
oklch(42.8% 0.112 128.1)
-
Step 900
900
#334A0C
oklch(37.7% 0.09 128.3)
-
Step 950
950
#1E2B0A
oklch(26.8% 0.056 128)
#688F28 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) | #968517 | 0.067 |
| Deuteranopia (no green cones) | #918231 | 0.069 |
| Tritanopia (no blue cones) | #6C887B | 0.109 |
| Achromatopsia (no color) | #838383 | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #688F28
#688F28
oklch(60% 0.137 128.1)
- #9767BF
#9767BF
oklch(60% 0.138 307.9)
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 #688F28, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Drab #6B8E23 ΔE 0.004
- Mossy Green #638B27 ΔE 0.014
- Dark Yellow Green #728F02 ΔE 0.018
- Moss Green #658B38 ΔE 0.020
- Sap Green #5C8B15 ΔE 0.023
- Swamp Green #748500 ΔE 0.029
- Fern Green #548D44 ΔE 0.033
- Khaki Green #728639 ΔE 0.036
Use #688F28 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.