#688788
Closest named color: Steel Grey (#6F828A). oklch(60% 0.035 198.7), rgb(104, 135, 136).
Aa
Black text reads best on this color (5.40:1).
About this color
#688788 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 60%, its chroma 0.035 and its hue 199°. 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 5.40:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (60%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | Steel Grey (#6F828A) |
| Black text | 5.40:1 |
| White text | 3.88:1 |
Values
| HEX | #688788 |
| RGB | rgb(104, 135, 136) |
| HSL | hsl(182, 13%, 47%) |
| OKLCH | oklch(60% 0.035 198.7) |
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 #688788 | 3.88:1 | AA large text | Lc -71.8 | Content text, not long reading |
| Black text on #688788 | 5.40:1 | AA | Lc 37.8 | Non-text elements, placeholder text |
| #688788 text on white | 3.88:1 | AA large text | Lc 66.3 | Content text, not long reading |
| #688788 text on black | 5.40:1 | AA | Lc -35.4 | 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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E6EBEB
oklch(93.6% 0.005 197.1)
-
Step 200
200
#D2DBDB
oklch(88.5% 0.01 197)
-
Step 300
300
#B5C4C5
oklch(80.9% 0.017 201.7)
-
Step 400
400
#8DA6A7
oklch(70.6% 0.028 199.5)
-
Step 500
500 (this color)
#688788
oklch(60% 0.035 198.7)
-
Step 600
600
#597A7C
oklch(55.5% 0.038 200.8)
-
Step 700
700
#496768
oklch(49.1% 0.035 198.7)
-
Step 800
800
#3C5455
oklch(42.7% 0.029 199.3)
-
Step 900
900
#334546
oklch(37.5% 0.023 200.5)
-
Step 950
950
#1E2929
oklch(27.1% 0.015 196.3)
#688788 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) | #838488 | 0.037 |
| Deuteranopia (no green cones) | #7C7F88 | 0.034 |
| Tritanopia (no blue cones) | #5E8987 | 0.013 |
| Achromatopsia (no color) | #818181 | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #688788
#688788
oklch(60% 0.035 198.7)
- #947878
#947878
oklch(59.9% 0.035 18.2)
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 #688788, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel Grey #6F828A ΔE 0.018
- Steel #738595 ΔE 0.028
- Slate Gray #708090 ΔE 0.029
- Battleship Grey #6B7C85 ΔE 0.031
- Medium Grey #7D7F7C ΔE 0.034
- Light Slate Gray #778899 ΔE 0.034
- Grey Blue #647D8E ΔE 0.035
- Gray #808080 ΔE 0.035
Use #688788 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.