#91A7FF
Closest named color: Periwinkle Blue (#8F99FB). oklch(74.7% 0.13 272.3), rgb(145, 167, 255).
Aa
Black text reads best on this color (9.17:1).
About this color
#91A7FF is a medium-light, moderately saturated blue. In OKLCH its lightness is 75%, its chroma 0.130 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.036 away. Black text reads best on it, at 9.17:1.
| Hue family | Blues |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.130) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 9.17:1 |
| White text | 2.28:1 |
Values
| HEX | #91A7FF |
| RGB | rgb(145, 167, 255) |
| HSL | hsl(228, 100%, 78%) |
| OKLCH | oklch(74.7% 0.13 272.3) |
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 #91A7FF | 2.28:1 | Fails | Lc -49.9 | Large or bold text, headings |
| Black text on #91A7FF | 9.17:1 | AAA | Lc 58.9 | Large or bold text, headings |
| #91A7FF text on white | 2.28:1 | Fails | Lc 45.0 | Large or bold text, headings |
| #91A7FF text on black | 9.17:1 | AAA | Lc -57.1 | 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
#CED8F8
oklch(88.5% 0.045 271.7)
-
Step 300
300
#AEBEF6
oklch(80.9% 0.081 272.1)
-
Step 400
400 (this color)
#91A7FF
oklch(74.7% 0.13 272.3)
-
Step 500
500
#687FEC
oklch(63.1% 0.165 272)
-
Step 600
600
#5265DB
oklch(55.7% 0.18 272.3)
-
Step 700
700
#4353BE
oklch(49.1% 0.168 272.3)
-
Step 800
800
#374599
oklch(42.8% 0.137 272.2)
-
Step 900
900
#2F3B7A
oklch(37.8% 0.107 272.2)
-
Step 950
950
#1B2347
oklch(27% 0.068 271.8)
#91A7FF 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) | #88B0FF | 0.025 |
| Deuteranopia (no green cones) | #7EA7FD | 0.023 |
| Tritanopia (no blue cones) | #6BB9C7 | 0.116 |
| Achromatopsia (no color) | #ABABAB | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91A7FF
#91A7FF
oklch(74.7% 0.13 272.3)
- #CAAA3E
#CAAA3E
oklch(74.7% 0.129 92.2)
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 #91A7FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.036
- Carolina Blue #8AB8FE ΔE 0.045
- Pastel Blue #A2BFFE ΔE 0.070
- Perrywinkle #8F8CE7 ΔE 0.071
- Cornflower Blue #6495ED ΔE 0.078
- Lavender Blue #8B88F8 ΔE 0.079
- Pastel Purple #CAA0FF ΔE 0.080
- Baby Purple #CA9BF7 ΔE 0.082
Use #91A7FF 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.