#688B7D
Closest named color: Slate Green (#658D6D). oklch(60.6% 0.045 168.3), rgb(104, 139, 125).
Aa
Black text reads best on this color (5.57:1).
About this color
#688B7D is a medium-dark, muted green. In OKLCH its lightness is 61%, its chroma 0.045 and its hue 168°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate Green (#658D6D), ΔE 0.027 away. Black text reads best on it, at 5.57:1.
| Hue family | Greens |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.045) |
| Temperature | in between |
| Nearest name | Slate Green (#658D6D) |
| Black text | 5.57:1 |
| White text | 3.76:1 |
Values
| HEX | #688B7D |
| RGB | rgb(104, 139, 125) |
| HSL | hsl(156, 14%, 48%) |
| OKLCH | oklch(60.6% 0.045 168.3) |
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 #688B7D | 3.76:1 | AA large text | Lc -70.7 | Content text, not long reading |
| Black text on #688B7D | 5.57:1 | AA | Lc 38.9 | Non-text elements, placeholder text |
| #688B7D text on white | 3.76:1 | AA large text | Lc 65.2 | Content text, not long reading |
| #688B7D text on black | 5.57:1 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E6EBE9
oklch(93.6% 0.006 170.4)
-
Step 200
200
#D2DCD7
oklch(88.5% 0.013 164.8)
-
Step 300
300
#B4C5BE
oklch(80.8% 0.021 169.2)
-
Step 400
400
#8CA89C
oklch(70.7% 0.036 167.5)
-
Step 500
500 (this color)
#688B7D
oklch(60.6% 0.045 168.3)
-
Step 600
600
#577D6E
oklch(55.7% 0.049 168.1)
-
Step 700
700
#47695C
oklch(49.1% 0.045 168.7)
-
Step 800
800
#3A564B
oklch(42.7% 0.038 168.1)
-
Step 900
900
#32473F
oklch(37.8% 0.03 169.2)
-
Step 950
950
#1E2925
oklch(26.9% 0.017 170.8)
#688B7D 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) | #89867C | 0.045 |
| Deuteranopia (no green cones) | #83827E | 0.043 |
| Tritanopia (no blue cones) | #608B87 | 0.017 |
| Achromatopsia (no color) | #848484 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #688B7D
#688B7D
oklch(60.6% 0.045 168.3)
- #977787
#977787
oklch(60.5% 0.046 347)
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 #688B7D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Green #658D6D ΔE 0.027
- Dusty Teal #4C9085 ΔE 0.030
- Green Grey #77926F ΔE 0.038
- Steel Grey #6F828A ΔE 0.039
- Medium Grey #7D7F7C ΔE 0.042
- Grey Teal #5E9B8A ΔE 0.044
- Gray #808080 ΔE 0.045
- Steel #738595 ΔE 0.049
Use #688B7D 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.