#91A1DA
Closest named color: Periwinkle Blue (#8F99FB). oklch(71.8% 0.085 272), rgb(145, 161, 218).
Aa
Black text reads best on this color (8.31:1).
About this color
#91A1DA is a medium-light, moderately saturated blue. In OKLCH its lightness is 72%, its chroma 0.085 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.058 away. Black text reads best on it, at 8.31:1.
| Hue family | Blues |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.31:1 |
| White text | 2.52:1 |
Values
| HEX | #91A1DA |
| RGB | rgb(145, 161, 218) |
| HSL | hsl(227, 50%, 71%) |
| OKLCH | oklch(71.8% 0.085 272) |
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 #91A1DA | 2.52:1 | Fails | Lc -54.6 | Large or bold text, headings |
| Black text on #91A1DA | 8.31:1 | AAA | Lc 54.5 | Large or bold text, headings |
| #91A1DA text on white | 2.52:1 | Fails | Lc 49.5 | Large or bold text, headings |
| #91A1DA text on black | 8.31:1 | AAA | Lc -52.5 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6E9F5
oklch(93.5% 0.016 274.8)
-
Step 200
200
#D2D8ED
oklch(88.4% 0.03 273.1)
-
Step 300
300
#B4BFE4
oklch(80.8% 0.054 272.1)
-
Step 400
400 (this color)
#91A1DA
oklch(71.8% 0.085 272)
-
Step 500
500
#7285CC
oklch(63.2% 0.109 271.6)
-
Step 600
600
#5B6DB8
oklch(55.5% 0.118 271.9)
-
Step 700
700
#4B5B9F
oklch(49.1% 0.11 271.8)
-
Step 800
800
#3E4B81
oklch(42.8% 0.091 271.9)
-
Step 900
900
#343F67
oklch(37.8% 0.07 271.1)
-
Step 950
950
#1F253C
oklch(27% 0.044 272.1)
#91A1DA 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) | #8FA6DC | 0.013 |
| Deuteranopia (no green cones) | #89A0D9 | 0.011 |
| Tritanopia (no blue cones) | #7CACB5 | 0.076 |
| Achromatopsia (no color) | #A3A3A3 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91A1DA
#91A1DA
oklch(71.8% 0.085 272)
- #B7A364
#B7A364
oklch(71.9% 0.086 92.4)
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 #91A1DA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.058
- Perrywinkle #8F8CE7 ΔE 0.064
- Bluey Grey #89A0B0 ΔE 0.064
- Cool Gray #8D99AE ΔE 0.064
- Pale Purple #B790D4 ΔE 0.065
- Bluegrey #85A3B2 ΔE 0.065
- Cool Steel #97A7B3 ΔE 0.065
- Greyblue #77A1B5 ΔE 0.067
Use #91A1DA 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.