#688F33
Closest named color: Olive Drab (#6B8E23). oklch(60.1% 0.129 129.2), rgb(104, 143, 51).
Aa
Black text reads best on this color (5.56:1).
About this color
#688F33 is a medium-dark, moderately saturated green. In OKLCH its lightness is 60%, its chroma 0.129 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 0.011 away. Black text reads best on it, at 5.56:1.
| Hue family | Greens |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.129) |
| Temperature | in between |
| Nearest name | Olive Drab (#6B8E23) |
| Black text | 5.56:1 |
| White text | 3.77:1 |
Values
| HEX | #688F33 |
| RGB | rgb(104, 143, 51) |
| HSL | hsl(85, 47%, 38%) |
| OKLCH | oklch(60.1% 0.129 129.2) |
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 #688F33 | 3.77:1 | AA large text | Lc -70.6 | Content text, not long reading |
| Black text on #688F33 | 5.56:1 | AA | Lc 38.9 | Non-text elements, placeholder text |
| #688F33 text on white | 3.77:1 | AA large text | Lc 65.1 | Content text, not long reading |
| #688F33 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
#F4F7F1
oklch(97.2% 0.009 128.6)
-
Step 100
100
#E6ECE0
oklch(93.5% 0.017 128.7)
-
Step 200
200
#D2DEC6
oklch(88.5% 0.035 128.9)
-
Step 300
300
#B4C99E
oklch(80.9% 0.063 128.9)
-
Step 400
400
#8DAD68
oklch(70.7% 0.101 129)
-
Step 500
500 (this color)
#688F33
oklch(60.1% 0.129 129.2)
-
Step 600
600
#598214
oklch(55.6% 0.139 129.1)
-
Step 700
700
#496E01
oklch(49.1% 0.13 129.1)
-
Step 800
800
#3C5A0A
oklch(42.8% 0.108 129.2)
-
Step 900
900
#334A13
oklch(37.7% 0.085 129.3)
-
Step 950
950
#1E2B0D
oklch(26.9% 0.053 129)
#688F33 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) | #968528 | 0.067 |
| Deuteranopia (no green cones) | #90823A | 0.068 |
| Tritanopia (no blue cones) | #6B897C | 0.100 |
| Achromatopsia (no color) | #838383 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #688F33
#688F33
oklch(60.1% 0.129 129.2)
- #9769BA
#9769BA
oklch(60.1% 0.128 309.2)
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 #688F33, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Drab #6B8E23 ΔE 0.011
- Moss Green #658B38 ΔE 0.014
- Mossy Green #638B27 ΔE 0.016
- Dark Yellow Green #728F02 ΔE 0.025
- Fern Green #548D44 ΔE 0.028
- Sap Green #5C8B15 ΔE 0.029
- Khaki Green #728639 ΔE 0.031
- Swamp Green #748500 ΔE 0.032
Use #688F33 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.