#91A3FC
Closest named color: Periwinkle Blue (#8F99FB). oklch(73.8% 0.13 274.1), rgb(145, 163, 252).
Aa
Black text reads best on this color (8.84:1).
About this color
#91A3FC is a medium-light, moderately saturated blue. In OKLCH its lightness is 74%, its chroma 0.130 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.026 away. Black text reads best on it, at 8.84:1.
| Hue family | Blues |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.130) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.84:1 |
| White text | 2.37:1 |
Values
| HEX | #91A3FC |
| RGB | rgb(145, 163, 252) |
| HSL | hsl(230, 95%, 78%) |
| OKLCH | oklch(73.8% 0.13 274.1) |
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 #91A3FC | 2.37:1 | Fails | Lc -51.6 | Large or bold text, headings |
| Black text on #91A3FC | 8.84:1 | AAA | Lc 57.3 | Large or bold text, headings |
| #91A3FC text on white | 2.37:1 | Fails | Lc 46.7 | Large or bold text, headings |
| #91A3FC text on black | 8.84:1 | AAA | Lc -55.4 | Large or bold text, headings |
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 400.
-
Step 50
50
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E5E9FA
oklch(93.6% 0.023 275.4)
-
Step 200
200
#CFD8F8
oklch(88.5% 0.045 273)
-
Step 300
300
#B0BDF6
oklch(80.8% 0.082 274.5)
-
Step 400
400 (this color)
#91A3FC
oklch(73.8% 0.13 274.1)
-
Step 500
500
#6C7DED
oklch(63.1% 0.168 274.1)
-
Step 600
600
#5663DB
oklch(55.5% 0.182 274.2)
-
Step 700
700
#4752BE
oklch(49.2% 0.168 274.1)
-
Step 800
800
#3A439A
oklch(42.6% 0.141 274.3)
-
Step 900
900
#313A7A
oklch(37.7% 0.108 274)
-
Step 950
950
#1D2248
oklch(27% 0.07 275)
#91A3FC 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) | #84ADFF | 0.028 |
| Deuteranopia (no green cones) | #7BA4FA | 0.027 |
| Tritanopia (no blue cones) | #6DB5C4 | 0.116 |
| Achromatopsia (no color) | #A8A8A8 | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91A3FC
#91A3FC
oklch(73.8% 0.13 274.1)
- #C5A839
#C5A839
oklch(73.7% 0.13 94.1)
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 #91A3FC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.026
- Carolina Blue #8AB8FE ΔE 0.054
- Perrywinkle #8F8CE7 ΔE 0.061
- Lavender Blue #8B88F8 ΔE 0.069
- Cornflower Blue #6495ED ΔE 0.071
- Pastel Blue #A2BFFE ΔE 0.079
- Pale Purple #B790D4 ΔE 0.080
- Pastel Purple #CAA0FF ΔE 0.081
Use #91A3FC 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.