#717FDB
Closest named color: Soft Blue (#6488EA). oklch(62.7% 0.139 275.1), rgb(113, 127, 219).
Aa
Black text reads best on this color (5.76:1).
About this color
#717FDB is a medium-light, moderately saturated blue. In OKLCH its lightness is 63%, its chroma 0.139 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.031 away. Black text reads best on it, at 5.76:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.139) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 5.76:1 |
| White text | 3.64:1 |
Values
| HEX | #717FDB |
| RGB | rgb(113, 127, 219) |
| HSL | hsl(232, 60%, 65%) |
| OKLCH | oklch(62.7% 0.139 275.1) |
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 #717FDB | 3.64:1 | AA large text | Lc -69.4 | Content text, not long reading |
| Black text on #717FDB | 5.76:1 | AA | Lc 40.2 | Non-text elements, placeholder text |
| #717FDB text on white | 3.64:1 | AA large text | Lc 63.9 | Content text, not long reading |
| #717FDB text on black | 5.76:1 | AA | Lc -37.8 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E6E9F7
oklch(93.6% 0.019 276.3)
-
Step 200
200
#D1D8F3
oklch(88.5% 0.038 274.1)
-
Step 300
300
#B3BEED
oklch(80.9% 0.068 274.5)
-
Step 400
400
#8D9BE4
oklch(70.7% 0.108 275)
-
Step 500
500 (this color)
#717FDB
oklch(62.7% 0.139 275.1)
-
Step 600
600
#5C68CA
oklch(55.7% 0.15 275.2)
-
Step 700
700
#4C56AF
oklch(49.2% 0.14 275.2)
-
Step 800
800
#3E478D
oklch(42.8% 0.115 274.9)
-
Step 900
900
#343C71
oklch(37.7% 0.091 274.8)
-
Step 950
950
#1F2342
oklch(26.9% 0.058 276.3)
#717FDB 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) | #5A8ADF | 0.036 |
| Deuteranopia (no green cones) | #5182D9 | 0.037 |
| Tritanopia (no blue cones) | #4892A2 | 0.123 |
| Achromatopsia (no color) | #868686 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #717FDB
#717FDB
oklch(62.7% 0.139 275.1)
- #A18600
#A18600
oklch(62.7% 0.129 94.7)
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 #717FDB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.031
- Cornflower #6A79F7 ΔE 0.048
- Dark Sky Blue #448EE4 ΔE 0.055
- Perrywinkle #8F8CE7 ΔE 0.058
- Cornflower Blue #6495ED ΔE 0.058
- Medium Purple #9370DB ΔE 0.059
- Lavender Blue #8B88F8 ΔE 0.061
- Medium Slate Blue #7B68EE ΔE 0.067
Use #717FDB 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.