#728E8B
Closest named color: Light Slate Gray (#778899). oklch(62.4% 0.032 188.4), rgb(114, 142, 139).
Aa
Black text reads best on this color (5.95:1).
About this color
#728E8B is a medium-light, muted teal or cyan. In OKLCH its lightness is 62%, its chroma 0.032 and its hue 188°. Its hue sits on the cool side of the wheel. The nearest named color is Light Slate Gray (#778899), ΔE 0.033 away. Black text reads best on it, at 5.95:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (62%) |
| Chroma | muted (0.032) |
| Temperature | cool |
| Nearest name | Light Slate Gray (#778899) |
| Black text | 5.95:1 |
| White text | 3.52:1 |
Values
| HEX | #728E8B |
| RGB | rgb(114, 142, 139) |
| HSL | hsl(174, 11%, 50%) |
| OKLCH | oklch(62.4% 0.032 188.4) |
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 #728E8B | 3.52:1 | AA large text | Lc -68.3 | Content text, not long reading |
| Black text on #728E8B | 5.95:1 | AA | Lc 41.3 | Non-text elements, placeholder text |
| #728E8B text on white | 3.52:1 | AA large text | Lc 62.8 | Content text, not long reading |
| #728E8B text on black | 5.95:1 | AA | Lc -38.9 | 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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E7EBEA
oklch(93.7% 0.004 179.7)
-
Step 200
200
#D3DBDA
oklch(88.5% 0.009 188.1)
-
Step 300
300
#B6C4C2
oklch(80.9% 0.016 186.6)
-
Step 400
400
#90A6A3
oklch(70.7% 0.025 186.6)
-
Step 500
500 (this color)
#728E8B
oklch(62.4% 0.032 188.4)
-
Step 600
600
#5C7A77
oklch(55.5% 0.035 188.6)
-
Step 700
700
#4C6764
oklch(49.1% 0.032 187.7)
-
Step 800
800
#3E5452
oklch(42.7% 0.027 189.3)
-
Step 900
900
#354544
oklch(37.6% 0.021 191.6)
-
Step 950
950
#1F2928
oklch(27.1% 0.014 188.9)
#728E8B 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) | #8B8B8B | 0.034 |
| Deuteranopia (no green cones) | #85878B | 0.031 |
| Tritanopia (no blue cones) | #6A8F8D | 0.010 |
| Achromatopsia (no color) | #888888 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #728E8B
#728E8B
oklch(62.4% 0.032 188.4)
- #9A8083
#9A8083
oklch(62.5% 0.032 10.2)
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 #728E8B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Slate Gray #778899 ΔE 0.033
- Steel #738595 ΔE 0.035
- Steel Grey #6F828A ΔE 0.036
- Blue Grey #758DA3 ΔE 0.039
- Gray #808080 ΔE 0.040
- Medium Grey #7D7F7C ΔE 0.042
- Grey Teal #5E9B8A ΔE 0.043
- Dusty Teal #4C9085 ΔE 0.044
Use #728E8B 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.