#718E9B
Closest named color: Blue Grey (#758DA3). oklch(62.9% 0.038 227), rgb(113, 142, 155).
Aa
Black text reads best on this color (6.04:1).
About this color
#718E9B is a medium-light, muted teal or cyan. In OKLCH its lightness is 63%, its chroma 0.038 and its hue 227°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Grey (#758DA3), ΔE 0.015 away. Black text reads best on it, at 6.04:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (63%) |
| Chroma | muted (0.038) |
| Temperature | cool |
| Nearest name | Blue Grey (#758DA3) |
| Black text | 6.04:1 |
| White text | 3.47:1 |
Values
| HEX | #718E9B |
| RGB | rgb(113, 142, 155) |
| HSL | hsl(199, 17%, 53%) |
| OKLCH | oklch(62.9% 0.038 227) |
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 #718E9B | 3.47:1 | AA large text | Lc -67.8 | Content text, not long reading |
| Black text on #718E9B | 6.04:1 | AA | Lc 41.8 | Non-text elements, placeholder text |
| #718E9B text on white | 3.47:1 | AA large text | Lc 62.3 | Content text, not long reading |
| #718E9B text on black | 6.04:1 | AA | Lc -39.4 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EBED
oklch(93.7% 0.006 223.5)
-
Step 200
200
#D2DBDE
oklch(88.5% 0.011 219.6)
-
Step 300
300
#B5C3CA
oklch(80.9% 0.018 229.1)
-
Step 400
400
#8EA5AF
oklch(70.8% 0.03 225.9)
-
Step 500
500 (this color)
#718E9B
oklch(62.9% 0.038 227)
-
Step 600
600
#5A7986
oklch(55.7% 0.041 225.6)
-
Step 700
700
#496572
oklch(49% 0.039 228.3)
-
Step 800
800
#3C535D
oklch(42.7% 0.033 226.6)
-
Step 900
900
#34444C
oklch(37.6% 0.025 229.8)
-
Step 950
950
#1E282C
oklch(26.9% 0.016 224.2)
#718E9B 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) | #878C9C | 0.030 |
| Deuteranopia (no green cones) | #81879B | 0.028 |
| Tritanopia (no blue cones) | #649292 | 0.026 |
| Achromatopsia (no color) | #8A8A8A | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #718E9B
#718E9B
oklch(62.9% 0.038 227)
- #9D8275
#9D8275
oklch(62.8% 0.038 47.2)
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 #718E9B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Grey #758DA3 ΔE 0.015
- Light Slate Gray #778899 ΔE 0.017
- Silver Lake Blue #778DA9 ΔE 0.025
- Steel #738595 ΔE 0.025
- Steel Grey #6F828A ΔE 0.037
- Slate Gray #708090 ΔE 0.039
- Lavender Gray #7E7F9A ΔE 0.044
- Cadet Blue #5F9EA0 ΔE 0.046
Use #718E9B 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.