#718FDA
Closest named color: Cornflower Blue (#6495ED). oklch(65.9% 0.117 266.7), rgb(113, 143, 218).
Aa
Black text reads best on this color (6.64:1).
About this color
#718FDA is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.117 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.031 away. Black text reads best on it, at 6.64:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 6.64:1 |
| White text | 3.16:1 |
Values
| HEX | #718FDA |
| RGB | rgb(113, 143, 218) |
| HSL | hsl(223, 59%, 65%) |
| OKLCH | oklch(65.9% 0.117 266.7) |
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 #718FDA | 3.16:1 | AA large text | Lc -64.0 | Content text, not long reading |
| Black text on #718FDA | 6.64:1 | AA | Lc 45.4 | Large or bold text, headings |
| #718FDA text on white | 3.16:1 | AA large text | Lc 58.6 | Large or bold text, headings |
| #718FDA text on black | 6.64:1 | 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
#CFD9EF
oklch(88.4% 0.032 266.1)
-
Step 300
300
#B0C0E7
oklch(80.9% 0.058 267.6)
-
Step 400
400
#869FDB
oklch(70.7% 0.093 266.7)
-
Step 500
500 (this color)
#718FDA
oklch(65.9% 0.117 266.7)
-
Step 600
600
#516FBE
oklch(55.7% 0.128 266.6)
-
Step 700
700
#425CA4
oklch(49.1% 0.119 267)
-
Step 800
800
#364C85
oklch(42.8% 0.099 266.4)
-
Step 900
900
#2F406A
oklch(37.8% 0.075 266.2)
-
Step 950
950
#1C253E
oklch(26.9% 0.049 268)
#718FDA 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) | #7396DD | 0.019 |
| Deuteranopia (no green cones) | #688CD8 | 0.014 |
| Tritanopia (no blue cones) | #469FAA | 0.106 |
| Achromatopsia (no color) | #919191 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #718FDA
#718FDA
oklch(65.9% 0.117 266.7)
- #B18C2E
#B18C2E
oklch(65.8% 0.117 86.5)
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 #718FDA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.031
- Soft Blue #6488EA ΔE 0.037
- Perrywinkle #8F8CE7 ΔE 0.046
- Dark Sky Blue #448EE4 ΔE 0.047
- Chefchaouen Blue #4895EF ΔE 0.048
- Faded Blue #658CBB ΔE 0.050
- Lavender Blue #8B88F8 ΔE 0.062
- Periwinkle Blue #8F99FB ΔE 0.067
Use #718FDA 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.