#688C7F
Closest named color: Slate Green (#658D6D). oklch(60.9% 0.045 170.5), rgb(104, 140, 127).
Aa
Black text reads best on this color (5.64:1).
About this color
#688C7F is a medium-dark, muted teal or cyan. In OKLCH its lightness is 61%, its chroma 0.045 and its hue 171°. Its hue sits on the cool side of the wheel. The nearest named color is Slate Green (#658D6D), ΔE 0.029 away. Black text reads best on it, at 5.64:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Slate Green (#658D6D) |
| Black text | 5.64:1 |
| White text | 3.71:1 |
Values
| HEX | #688C7F |
| RGB | rgb(104, 140, 127) |
| HSL | hsl(158, 15%, 48%) |
| OKLCH | oklch(60.9% 0.045 170.5) |
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 #688C7F | 3.71:1 | AA large text | Lc -70.2 | Content text, not long reading |
| Black text on #688C7F | 5.64:1 | AA | Lc 39.3 | Non-text elements, placeholder text |
| #688C7F text on white | 3.71:1 | AA large text | Lc 64.7 | Content text, not long reading |
| #688C7F text on black | 5.64:1 | AA | Lc -36.9 | 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
#D2DCD8
oklch(88.6% 0.012 170.2)
-
Step 300
300
#B3C5BE
oklch(80.8% 0.022 170.5)
-
Step 400
400
#8CA89D
oklch(70.7% 0.035 169.5)
-
Step 500
500 (this color)
#688C7F
oklch(60.9% 0.045 170.5)
-
Step 600
600
#567D6F
oklch(55.6% 0.049 170.1)
-
Step 700
700
#46695D
oklch(49% 0.045 171)
-
Step 800
800
#3A564C
oklch(42.8% 0.038 170.3)
-
Step 900
900
#32473F
oklch(37.8% 0.03 169.2)
-
Step 950
950
#1D2925
oklch(26.8% 0.018 172.4)
#688C7F 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) | #8A877E | 0.047 |
| Deuteranopia (no green cones) | #838380 | 0.043 |
| Tritanopia (no blue cones) | #608D88 | 0.015 |
| Achromatopsia (no color) | #848484 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #688C7F
#688C7F
oklch(60.9% 0.045 170.5)
- #997886
#997886
oklch(60.9% 0.045 351.2)
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 #688C7F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Green #658D6D ΔE 0.029
- Dusty Teal #4C9085 ΔE 0.029
- Green Grey #77926F ΔE 0.038
- Steel Grey #6F828A ΔE 0.040
- Grey Teal #5E9B8A ΔE 0.042
- Medium Grey #7D7F7C ΔE 0.044
- Gray #808080 ΔE 0.046
- Steel #738595 ΔE 0.048
Use #688C7F 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.