#91A4E1
Closest named color: Periwinkle Blue (#8F99FB). oklch(72.7% 0.092 270.7), rgb(145, 164, 225).
Aa
Black text reads best on this color (8.60:1).
About this color
#91A4E1 is a medium-light, moderately saturated blue. In OKLCH its lightness is 73%, its chroma 0.092 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.054 away. Black text reads best on it, at 8.60:1.
| Hue family | Blues |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.60:1 |
| White text | 2.44:1 |
Values
| HEX | #91A4E1 |
| RGB | rgb(145, 164, 225) |
| HSL | hsl(226, 57%, 73%) |
| OKLCH | oklch(72.7% 0.092 270.7) |
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 #91A4E1 | 2.44:1 | Fails | Lc -53.0 | Large or bold text, headings |
| Black text on #91A4E1 | 8.60:1 | AAA | Lc 56.0 | Large or bold text, headings |
| #91A4E1 text on white | 2.44:1 | Fails | Lc 48.0 | Large or bold text, headings |
| #91A4E1 text on black | 8.60:1 | AAA | Lc -54.0 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF5
oklch(93.6% 0.016 266.3)
-
Step 200
200
#D1D9EF
oklch(88.6% 0.031 269.8)
-
Step 300
300
#B2BFE7
oklch(80.8% 0.058 270.9)
-
Step 400
400 (this color)
#91A4E1
oklch(72.7% 0.092 270.7)
-
Step 500
500
#6F85D0
oklch(63.2% 0.116 270.4)
-
Step 600
600
#586DBD
oklch(55.6% 0.127 270.7)
-
Step 700
700
#485BA3
oklch(49.2% 0.117 270.5)
-
Step 800
800
#3B4A84
oklch(42.6% 0.098 270.8)
-
Step 900
900
#323E6A
oklch(37.6% 0.077 270.8)
-
Step 950
950
#1E253E
oklch(27.1% 0.048 271.1)
#91A4E1 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) | #90A9E4 | 0.013 |
| Deuteranopia (no green cones) | #89A3E0 | 0.011 |
| Tritanopia (no blue cones) | #79B0B9 | 0.083 |
| Achromatopsia (no color) | #A6A6A6 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91A4E1
#91A4E1
oklch(72.7% 0.092 270.7)
- #BDA561
#BDA561
oklch(72.8% 0.092 90.6)
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 #91A4E1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.054
- Carolina Blue #8AB8FE ΔE 0.058
- Perrywinkle #8F8CE7 ΔE 0.067
- Pale Purple #B790D4 ΔE 0.069
- Cool Steel #97A7B3 ΔE 0.071
- Bluegrey #85A3B2 ΔE 0.073
- Bluey Grey #89A0B0 ΔE 0.073
- Cool Gray #8D99AE ΔE 0.075
Use #91A4E1 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.