#718A91
Closest named color: Light Slate Gray (#778899). oklch(61.6% 0.03 216.6), rgb(113, 138, 145).
Aa
Black text reads best on this color (5.74:1).
About this color
#718A91 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 62%, its chroma 0.030 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Light Slate Gray (#778899), ΔE 0.018 away. Black text reads best on it, at 5.74:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (62%) |
| Chroma | muted (0.030) |
| Temperature | cool |
| Nearest name | Light Slate Gray (#778899) |
| Black text | 5.74:1 |
| White text | 3.65:1 |
Values
| HEX | #718A91 |
| RGB | rgb(113, 138, 145) |
| HSL | hsl(193, 13%, 51%) |
| OKLCH | oklch(61.6% 0.03 216.6) |
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 #718A91 | 3.65:1 | AA large text | Lc -69.6 | Content text, not long reading |
| Black text on #718A91 | 5.74:1 | AA | Lc 39.9 | Non-text elements, placeholder text |
| #718A91 text on white | 3.65:1 | AA large text | Lc 64.1 | Content text, not long reading |
| #718A91 text on black | 5.74:1 | AA | Lc -37.5 | 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
#E7EBEC
oklch(93.7% 0.005 214.3)
-
Step 200
200
#D3DBDD
oklch(88.6% 0.009 214.3)
-
Step 300
300
#B6C3C7
oklch(80.8% 0.015 218.1)
-
Step 400
400
#91A5AA
oklch(70.8% 0.024 214.5)
-
Step 500
500 (this color)
#718A91
oklch(61.6% 0.03 216.6)
-
Step 600
600
#5E7880
oklch(55.5% 0.033 218.5)
-
Step 700
700
#4D656C
oklch(49% 0.031 217.5)
-
Step 800
800
#3F5358
oklch(42.7% 0.026 214.7)
-
Step 900
900
#364448
oklch(37.6% 0.019 217)
-
Step 950
950
#20282A
oklch(27% 0.012 214.5)
#718A91 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) | #858891 | 0.027 |
| Deuteranopia (no green cones) | #808491 | 0.025 |
| Tritanopia (no blue cones) | #688D8C | 0.018 |
| Achromatopsia (no color) | #868686 | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #718A91
#718A91
oklch(61.6% 0.03 216.6)
- #967F78
#967F78
oklch(61.6% 0.03 37.6)
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 #718A91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Slate Gray #778899 ΔE 0.018
- Steel #738595 ΔE 0.018
- Steel Grey #6F828A ΔE 0.023
- Blue Grey #758DA3 ΔE 0.028
- Slate Gray #708090 ΔE 0.029
- Gray #808080 ΔE 0.035
- Silver Lake Blue #778DA9 ΔE 0.037
- Medium Grey #7D7F7C ΔE 0.038
Use #718A91 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.