#91ACFB
Closest named color: Carolina Blue (#8AB8FE). oklch(75.5% 0.118 269.1), rgb(145, 172, 251).
Aa
Black text reads best on this color (9.49:1).
About this color
#91ACFB is a medium-light, moderately saturated blue. In OKLCH its lightness is 76%, its chroma 0.118 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.031 away. Black text reads best on it, at 9.49:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 9.49:1 |
| White text | 2.21:1 |
Values
| HEX | #91ACFB |
| RGB | rgb(145, 172, 251) |
| HSL | hsl(225, 93%, 78%) |
| OKLCH | oklch(75.5% 0.118 269.1) |
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 #91ACFB | 2.21:1 | Fails | Lc -48.2 | Large or bold text, headings |
| Black text on #91ACFB | 9.49:1 | AAA | Lc 60.5 | Content text, not long reading |
| #91ACFB text on white | 2.21:1 | Fails | Lc 43.5 | Non-text elements, placeholder text |
| #91ACFB text on black | 9.49:1 | AAA | Lc -58.7 | 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
#E4EAF9
oklch(93.7% 0.021 268.4)
-
Step 200
200
#CED9F5
oklch(88.6% 0.04 268.5)
-
Step 300
300
#ADBFF1
oklch(80.8% 0.074 269.3)
-
Step 400
400 (this color)
#91ACFB
oklch(75.5% 0.118 269.1)
-
Step 500
500
#6582E4
oklch(63.1% 0.151 269.3)
-
Step 600
600
#4D69D2
oklch(55.5% 0.164 269.2)
-
Step 700
700
#3E57B6
oklch(49% 0.153 269)
-
Step 800
800
#334893
oklch(42.7% 0.126 268.8)
-
Step 900
900
#2C3D75
oklch(37.7% 0.098 268.7)
-
Step 950
950
#1A2445
oklch(27% 0.063 269.2)
#91ACFB 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) | #90B3FE | 0.018 |
| Deuteranopia (no green cones) | #86AAF9 | 0.015 |
| Tritanopia (no blue cones) | #6CBCC8 | 0.106 |
| Achromatopsia (no color) | #AEAEAE | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91ACFB
#91ACFB
oklch(75.5% 0.118 269.1)
- #CEAC4F
#CEAC4F
oklch(75.7% 0.118 89.2)
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 #91ACFB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.031
- Periwinkle Blue #8F99FB ΔE 0.050
- Pastel Blue #A2BFFE ΔE 0.056
- Lightblue #7BC8F6 ΔE 0.078
- Sky #82CAFC ΔE 0.079
- Pastel Purple #CAA0FF ΔE 0.082
- Perrywinkle #8F8CE7 ΔE 0.082
- Light Grey Blue #9DBCD4 ΔE 0.083
Use #91ACFB 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.