#718F99
Closest named color: Blue Grey (#758DA3). oklch(63.1% 0.037 220.2), rgb(113, 143, 153).
Aa
Black text reads best on this color (6.09:1).
About this color
#718F99 is a medium-light, muted teal or cyan. In OKLCH its lightness is 63%, its chroma 0.037 and its hue 220°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Grey (#758DA3), ΔE 0.019 away. Black text reads best on it, at 6.09:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (63%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Blue Grey (#758DA3) |
| Black text | 6.09:1 |
| White text | 3.44:1 |
Values
| HEX | #718F99 |
| RGB | rgb(113, 143, 153) |
| HSL | hsl(195, 16%, 52%) |
| OKLCH | oklch(63.1% 0.037 220.2) |
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 #718F99 | 3.44:1 | AA large text | Lc -67.5 | Content text, not long reading |
| Black text on #718F99 | 6.09:1 | AA | Lc 42.1 | Non-text elements, placeholder text |
| #718F99 text on white | 3.44:1 | AA large text | Lc 62.0 | Content text, not long reading |
| #718F99 text on black | 6.09:1 | AA | Lc -39.7 | 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
#E6EBEC
oklch(93.7% 0.006 211)
-
Step 200
200
#D2DBDE
oklch(88.5% 0.011 219.6)
-
Step 300
300
#B5C4C9
oklch(81% 0.018 219.7)
-
Step 400
400
#8EA5AD
oklch(70.7% 0.028 220.8)
-
Step 500
500 (this color)
#718F99
oklch(63.1% 0.037 220.2)
-
Step 600
600
#597984
oklch(55.6% 0.04 221.1)
-
Step 700
700
#496670
oklch(49.1% 0.038 221.2)
-
Step 800
800
#3C535B
oklch(42.7% 0.031 221.3)
-
Step 900
900
#33454B
oklch(37.7% 0.025 220.3)
-
Step 950
950
#1E282C
oklch(26.9% 0.016 224.2)
#718F99 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) | #898D9A | 0.032 |
| Deuteranopia (no green cones) | #828899 | 0.029 |
| Tritanopia (no blue cones) | #659392 | 0.023 |
| Achromatopsia (no color) | #8A8A8A | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #718F99
#718F99
oklch(63.1% 0.037 220.2)
- #9E8279
#9E8279
oklch(63% 0.037 38.6)
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 #718F99, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Grey #758DA3 ΔE 0.019
- Light Slate Gray #778899 ΔE 0.021
- Steel #738595 ΔE 0.028
- Silver Lake Blue #778DA9 ΔE 0.029
- Steel Grey #6F828A ΔE 0.038
- Slate Gray #708090 ΔE 0.042
- Cadet Blue #5F9EA0 ΔE 0.043
- Gray #808080 ΔE 0.048
Use #718F99 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.