#688C74
Closest named color: Slate Green (#658D6D). oklch(60.6% 0.054 155.3), rgb(104, 140, 116).
Aa
Black text reads best on this color (5.59:1).
About this color
#688C74 is a medium-dark, muted green. In OKLCH its lightness is 61%, its chroma 0.054 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate Green (#658D6D), ΔE 0.013 away. Black text reads best on it, at 5.59:1.
| Hue family | Greens |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.054) |
| Temperature | in between |
| Nearest name | Slate Green (#658D6D) |
| Black text | 5.59:1 |
| White text | 3.75:1 |
Values
| HEX | #688C74 |
| RGB | rgb(104, 140, 116) |
| HSL | hsl(140, 15%, 48%) |
| OKLCH | oklch(60.6% 0.054 155.3) |
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 #688C74 | 3.75:1 | AA large text | Lc -70.6 | Content text, not long reading |
| Black text on #688C74 | 5.59:1 | AA | Lc 39.0 | Non-text elements, placeholder text |
| #688C74 text on white | 3.75:1 | AA large text | Lc 65.1 | Content text, not long reading |
| #688C74 text on black | 5.59:1 | AA | Lc -36.6 | 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
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E6EBE8
oklch(93.5% 0.007 160.1)
-
Step 200
200
#D2DCD5
oklch(88.5% 0.014 155.6)
-
Step 300
300
#B4C6B9
oklch(80.9% 0.027 154.4)
-
Step 400
400
#8CA995
oklch(70.7% 0.043 155)
-
Step 500
500 (this color)
#688C74
oklch(60.6% 0.054 155.3)
-
Step 600
600
#577E64
oklch(55.6% 0.06 154.8)
-
Step 700
700
#476A53
oklch(49.1% 0.055 155.1)
-
Step 800
800
#3B5744
oklch(42.8% 0.046 154.4)
-
Step 900
900
#324739
oklch(37.6% 0.036 155.2)
-
Step 950
950
#1E2A22
oklch(27.1% 0.022 155.5)
#688C74 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) | #8C8673 | 0.050 |
| Deuteranopia (no green cones) | #868275 | 0.048 |
| Tritanopia (no blue cones) | #628B85 | 0.027 |
| Achromatopsia (no color) | #848484 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #688C74
#688C74
oklch(60.6% 0.054 155.3)
- #97768F
#97768F
oklch(60.6% 0.054 335)
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 #688C74, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Green #658D6D ΔE 0.013
- Green Grey #77926F ΔE 0.029
- Dusty Teal #4C9085 ΔE 0.034
- Grey Teal #5E9B8A ΔE 0.045
- Dark Sage #598556 ΔE 0.049
- Medium Grey #7D7F7C ΔE 0.051
- Brown Grey #8D8468 ΔE 0.052
- Steel Grey #6F828A ΔE 0.053
Use #688C74 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.