#718FD9
Closest named color: Cornflower Blue (#6495ED). oklch(65.9% 0.116 266.5), rgb(113, 143, 217).
Aa
Black text reads best on this color (6.63:1).
About this color
#718FD9 is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.116 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.032 away. Black text reads best on it, at 6.63:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 6.63:1 |
| White text | 3.16:1 |
Values
| HEX | #718FD9 |
| RGB | rgb(113, 143, 217) |
| HSL | hsl(223, 58%, 65%) |
| OKLCH | oklch(65.9% 0.116 266.5) |
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 #718FD9 | 3.16:1 | AA large text | Lc -64.1 | Content text, not long reading |
| Black text on #718FD9 | 6.63:1 | AA | Lc 45.4 | Large or bold text, headings |
| #718FD9 text on white | 3.16:1 | AA large text | Lc 58.7 | Large or bold text, headings |
| #718FD9 text on black | 6.63:1 | AA | Lc -43.1 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF5
oklch(93.6% 0.016 266.3)
-
Step 200
200
#D0D9EF
oklch(88.5% 0.032 268)
-
Step 300
300
#B0C0E6
oklch(80.8% 0.057 267.2)
-
Step 400
400
#879FDA
oklch(70.7% 0.091 267)
-
Step 500
500 (this color)
#718FD9
oklch(65.9% 0.116 266.5)
-
Step 600
600
#516FBD
oklch(55.6% 0.126 266.5)
-
Step 700
700
#425DA3
oklch(49.2% 0.117 266.3)
-
Step 800
800
#364C84
oklch(42.7% 0.097 266.2)
-
Step 900
900
#2F406A
oklch(37.8% 0.075 266.2)
-
Step 950
950
#1C253E
oklch(26.9% 0.049 268)
#718FD9 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) | #7396DC | 0.019 |
| Deuteranopia (no green cones) | #688CD7 | 0.014 |
| Tritanopia (no blue cones) | #479FAA | 0.104 |
| Achromatopsia (no color) | #919191 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #718FD9
#718FD9
oklch(65.9% 0.116 266.5)
- #B18C30
#B18C30
oklch(65.8% 0.116 86.2)
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 #718FD9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.032
- Soft Blue #6488EA ΔE 0.038
- Perrywinkle #8F8CE7 ΔE 0.046
- Dark Sky Blue #448EE4 ΔE 0.047
- Chefchaouen Blue #4895EF ΔE 0.048
- Faded Blue #658CBB ΔE 0.048
- Lavender Blue #8B88F8 ΔE 0.063
- Periwinkle Blue #8F99FB ΔE 0.068
Use #718FD9 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.