#91A4FD
Closest named color: Periwinkle Blue (#8F99FB). oklch(74% 0.131 273.7), rgb(145, 164, 253).
Aa
Black text reads best on this color (8.93:1).
About this color
#91A4FD is a medium-light, moderately saturated blue. In OKLCH its lightness is 74%, its chroma 0.131 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.028 away. Black text reads best on it, at 8.93:1.
| Hue family | Blues |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.131) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.93:1 |
| White text | 2.35:1 |
Values
| HEX | #91A4FD |
| RGB | rgb(145, 164, 253) |
| HSL | hsl(229, 96%, 78%) |
| OKLCH | oklch(74% 0.131 273.7) |
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 #91A4FD | 2.35:1 | Fails | Lc -51.2 | Large or bold text, headings |
| Black text on #91A4FD | 8.93:1 | AAA | Lc 57.7 | Large or bold text, headings |
| #91A4FD text on white | 2.35:1 | Fails | Lc 46.3 | Large or bold text, headings |
| #91A4FD text on black | 8.93:1 | AAA | Lc -55.8 | 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
#E4E9FA
oklch(93.5% 0.024 272.8)
-
Step 200
200
#CFD8F8
oklch(88.5% 0.045 273)
-
Step 300
300
#AFBDF6
oklch(80.8% 0.082 273.7)
-
Step 400
400 (this color)
#91A4FD
oklch(74% 0.131 273.7)
-
Step 500
500
#6B7DED
oklch(63% 0.168 273.7)
-
Step 600
600
#5564DB
oklch(55.6% 0.181 273.6)
-
Step 700
700
#4652BE
oklch(49.1% 0.168 273.7)
-
Step 800
800
#39449A
oklch(42.8% 0.14 273.5)
-
Step 900
900
#313A7A
oklch(37.7% 0.108 274)
-
Step 950
950
#1C2348
oklch(27.1% 0.069 272.9)
#91A4FD 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) | #85AEFF | 0.027 |
| Deuteranopia (no green cones) | #7BA5FB | 0.027 |
| Tritanopia (no blue cones) | #6CB6C5 | 0.116 |
| Achromatopsia (no color) | #A9A9A9 | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91A4FD
#91A4FD
oklch(74% 0.131 273.7)
- #C6A93A
#C6A93A
oklch(74.1% 0.131 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 #91A4FD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.028
- Carolina Blue #8AB8FE ΔE 0.052
- Perrywinkle #8F8CE7 ΔE 0.064
- Lavender Blue #8B88F8 ΔE 0.072
- Cornflower Blue #6495ED ΔE 0.073
- Pastel Blue #A2BFFE ΔE 0.077
- Pastel Purple #CAA0FF ΔE 0.080
- Baby Purple #CA9BF7 ΔE 0.081
Use #91A4FD 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.