#688381
Closest named color: Steel Grey (#6F828A). oklch(58.8% 0.031 190.8), rgb(104, 131, 129).
Aa
Black text reads best on this color (5.15:1).
About this color
#688381 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 59%, its chroma 0.031 and its hue 191°. Its hue sits on the cool side of the wheel. The nearest named color is Steel Grey (#6F828A), ΔE 0.018 away. Black text reads best on it, at 5.15:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (59%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | Steel Grey (#6F828A) |
| Black text | 5.15:1 |
| White text | 4.07:1 |
Values
| HEX | #688381 |
| RGB | rgb(104, 131, 129) |
| HSL | hsl(176, 11%, 46%) |
| OKLCH | oklch(58.8% 0.031 190.8) |
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 #688381 | 4.07:1 | AA large text | Lc -73.4 | Content text, not long reading |
| Black text on #688381 | 5.15:1 | AA | Lc 36.1 | Non-text elements, placeholder text |
| #688381 text on white | 4.07:1 | AA large text | Lc 67.9 | Content text, not long reading |
| #688381 text on black | 5.15:1 | AA | Lc -33.7 | 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 600.
-
Step 50
50
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E7EBEA
oklch(93.7% 0.004 179.7)
-
Step 200
200
#D4DBDA
oklch(88.6% 0.008 186.9)
-
Step 300
300
#B7C4C3
oklch(81% 0.014 191.3)
-
Step 400
400
#91A5A4
oklch(70.6% 0.022 193)
-
Step 500
500
#768F8D
oklch(63% 0.029 190.5)
-
Step 600
600 (this color)
#688381
oklch(58.8% 0.031 190.8)
-
Step 700
700
#4E6664
oklch(49% 0.029 189.9)
-
Step 800
800
#405352
oklch(42.6% 0.024 192.3)
-
Step 900
900
#364544
oklch(37.7% 0.019 191.3)
-
Step 950
950
#202828
oklch(26.9% 0.011 196.5)
#688381 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) | #808081 | 0.033 |
| Deuteranopia (no green cones) | #7A7C81 | 0.030 |
| Tritanopia (no blue cones) | #608582 | 0.011 |
| Achromatopsia (no color) | #7E7E7E | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #688381
#688381
oklch(58.8% 0.031 190.8)
- #8E7678
#8E7678
oklch(58.9% 0.03 12.4)
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 #688381, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel Grey #6F828A ΔE 0.018
- Battleship Grey #6B7C85 ΔE 0.024
- Medium Grey #7D7F7C ΔE 0.029
- Slate Gray #708090 ΔE 0.030
- Grey Blue #647D8E ΔE 0.032
- Gray #808080 ΔE 0.033
- Steel #738595 ΔE 0.035
- Battleship Gray #6C757D ΔE 0.040
Use #688381 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.