#91A1EF
Closest named color: Periwinkle Blue (#8F99FB). oklch(72.8% 0.115 274.4), rgb(145, 161, 239).
Aa
Black text reads best on this color (8.54:1).
About this color
#91A1EF is a medium-light, moderately saturated blue. In OKLCH its lightness is 73%, its chroma 0.115 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.031 away. Black text reads best on it, at 8.54:1.
| Hue family | Blues |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.115) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.54:1 |
| White text | 2.45:1 |
Values
| HEX | #91A1EF |
| RGB | rgb(145, 161, 239) |
| HSL | hsl(230, 75%, 75%) |
| OKLCH | oklch(72.8% 0.115 274.4) |
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 #91A1EF | 2.45:1 | Fails | Lc -53.3 | Large or bold text, headings |
| Black text on #91A1EF | 8.54:1 | AAA | Lc 55.8 | Large or bold text, headings |
| #91A1EF text on white | 2.45:1 | Fails | Lc 48.2 | Large or bold text, headings |
| #91A1EF text on black | 8.54:1 | AAA | Lc -53.7 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5E9F8
oklch(93.5% 0.021 274)
-
Step 200
200
#D1D8F4
oklch(88.6% 0.039 274.4)
-
Step 300
300
#B2BEF0
oklch(81% 0.072 274.2)
-
Step 400
400 (this color)
#91A1EF
oklch(72.8% 0.115 274.4)
-
Step 500
500
#7080E1
oklch(63.2% 0.146 274.4)
-
Step 600
600
#5967CF
oklch(55.6% 0.16 274.3)
-
Step 700
700
#4955B3
oklch(49.1% 0.148 274.1)
-
Step 800
800
#3C4691
oklch(42.7% 0.123 274.3)
-
Step 900
900
#333B74
oklch(37.6% 0.097 274.7)
-
Step 950
950
#1E2344
oklch(27% 0.061 275)
#91A1EF 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) | #87A9F2 | 0.022 |
| Deuteranopia (no green cones) | #7FA2ED | 0.023 |
| Tritanopia (no blue cones) | #74B1BD | 0.103 |
| Achromatopsia (no color) | #A5A5A5 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91A1EF
#91A1EF
oklch(72.8% 0.115 274.4)
- #BEA64A
#BEA64A
oklch(72.8% 0.115 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 #91A1EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.031
- Perrywinkle #8F8CE7 ΔE 0.054
- Carolina Blue #8AB8FE ΔE 0.059
- Cornflower Blue #6495ED ΔE 0.066
- Pale Purple #B790D4 ΔE 0.069
- Lavender Blue #8B88F8 ΔE 0.070
- Pastel Blue #A2BFFE ΔE 0.083
- Baby Purple #CA9BF7 ΔE 0.083
Use #91A1EF 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.