#91B7EF
Closest named color: Carolina Blue (#8AB8FE). oklch(77.3% 0.091 257.9), rgb(145, 183, 239).
Aa
Black text reads best on this color (10.22:1).
About this color
#91B7EF is a medium-light, moderately saturated blue. In OKLCH its lightness is 77%, its chroma 0.091 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.022 away. Black text reads best on it, at 10.22:1.
| Hue family | Blues |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 10.22:1 |
| White text | 2.05:1 |
Values
| HEX | #91B7EF |
| RGB | rgb(145, 183, 239) |
| HSL | hsl(216, 75%, 75%) |
| OKLCH | oklch(77.3% 0.091 257.9) |
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 #91B7EF | 2.05:1 | Fails | Lc -44.5 | Non-text elements, placeholder text |
| Black text on #91B7EF | 10.22:1 | AAA | Lc 64.0 | Content text, not long reading |
| #91B7EF text on white | 2.05:1 | Fails | Lc 40.0 | Non-text elements, placeholder text |
| #91B7EF text on black | 10.22:1 | AAA | Lc -62.3 | Content text, not long reading |
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 300.
-
Step 50
50
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DFEBFC
oklch(93.6% 0.026 257)
-
Step 200
200
#C5DBFB
oklch(88.5% 0.05 257.7)
-
Step 300
300 (this color)
#91B7EF
oklch(77.3% 0.091 257.9)
-
Step 400
400
#65A1FA
oklch(70.7% 0.145 258.1)
-
Step 500
500
#3786F7
oklch(63.1% 0.186 258)
-
Step 600
600
#076CE6
oklch(55.5% 0.202 258.1)
-
Step 700
700
#005AC4
oklch(49% 0.181 258)
-
Step 800
800
#034AA1
oklch(42.7% 0.155 257.9)
-
Step 900
900
#103F80
oklch(37.7% 0.121 258)
-
Step 950
950
#0B254B
oklch(26.9% 0.077 258.3)
#91B7EF 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) | #A3BAF2 | 0.025 |
| Deuteranopia (no green cones) | #98B1EE | 0.017 |
| Tritanopia (no blue cones) | #71C3CA | 0.080 |
| Achromatopsia (no color) | #B5B5B5 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91B7EF
#91B7EF
oklch(77.3% 0.091 257.9)
- #D5AE71
#D5AE71
oklch(77.2% 0.091 78)
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 #91B7EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.022
- Pastel Blue #A2BFFE ΔE 0.036
- Lightblue #7BC8F6 ΔE 0.046
- Light Grey Blue #9DBCD4 ΔE 0.047
- Light Cornflower Blue #98C1D9 ΔE 0.049
- Sky #82CAFC ΔE 0.049
- Light Sky Blue #87CEFA ΔE 0.059
- Cloudy Blue #ACC2D9 ΔE 0.060
Use #91B7EF 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.