#728D91
Closest named color: Light Slate Gray (#778899). oklch(62.4% 0.031 207.4), rgb(114, 141, 145).
Aa
Black text reads best on this color (5.93:1).
About this color
#728D91 is a medium-light, muted teal or cyan. In OKLCH its lightness is 62%, its chroma 0.031 and its hue 207°. Its hue sits on the cool side of the wheel. The nearest named color is Light Slate Gray (#778899), ΔE 0.023 away. Black text reads best on it, at 5.93:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (62%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | Light Slate Gray (#778899) |
| Black text | 5.93:1 |
| White text | 3.53:1 |
Values
| HEX | #728D91 |
| RGB | rgb(114, 141, 145) |
| HSL | hsl(188, 12%, 51%) |
| OKLCH | oklch(62.4% 0.031 207.4) |
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 #728D91 | 3.53:1 | AA large text | Lc -68.4 | Content text, not long reading |
| Black text on #728D91 | 5.93:1 | AA | Lc 41.1 | Non-text elements, placeholder text |
| #728D91 text on white | 3.53:1 | AA large text | Lc 63.0 | Content text, not long reading |
| #728D91 text on black | 5.93:1 | AA | Lc -38.7 | 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 500.
-
Step 50
50
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E7EBEB
oklch(93.7% 0.004 197.1)
-
Step 200
200
#D3DBDC
oklch(88.6% 0.009 205.9)
-
Step 300
300
#B6C4C6
oklch(81% 0.016 207.1)
-
Step 400
400
#90A5A8
oklch(70.7% 0.024 207.1)
-
Step 500
500 (this color)
#728D91
oklch(62.4% 0.031 207.4)
-
Step 600
600
#5C797E
oklch(55.5% 0.034 209.2)
-
Step 700
700
#4C666A
oklch(49.1% 0.031 207.9)
-
Step 800
800
#3E5356
oklch(42.6% 0.026 207.1)
-
Step 900
900
#354547
oklch(37.7% 0.021 205.7)
-
Step 950
950
#1F282A
oklch(26.9% 0.013 212.7)
#728D91 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) | #888B91 | 0.030 |
| Deuteranopia (no green cones) | #838691 | 0.029 |
| Tritanopia (no blue cones) | #698F8E | 0.014 |
| Achromatopsia (no color) | #888888 | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #728D91
#728D91
oklch(62.4% 0.031 207.4)
- #99817D
#99817D
oklch(62.4% 0.03 29.1)
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 #728D91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Slate Gray #778899 ΔE 0.023
- Steel #738595 ΔE 0.026
- Blue Grey #758DA3 ΔE 0.028
- Steel Grey #6F828A ΔE 0.032
- Slate Gray #708090 ΔE 0.038
- Silver Lake Blue #778DA9 ΔE 0.038
- Gray #808080 ΔE 0.039
- Medium Grey #7D7F7C ΔE 0.043
Use #728D91 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.