#91BBF5
Closest named color: Carolina Blue (#8AB8FE). oklch(78.4% 0.095 256.6), rgb(145, 187, 245).
Aa
Black text reads best on this color (10.63:1).
About this color
#91BBF5 is a light, moderately saturated blue. In OKLCH its lightness is 78%, its chroma 0.095 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.019 away. Black text reads best on it, at 10.63:1.
| Hue family | Blues |
| Lightness | light (78%) |
| Chroma | moderately saturated (0.095) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 10.63:1 |
| White text | 1.97:1 |
Values
| HEX | #91BBF5 |
| RGB | rgb(145, 187, 245) |
| HSL | hsl(215, 83%, 76%) |
| OKLCH | oklch(78.4% 0.095 256.6) |
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 #91BBF5 | 1.97:1 | Fails | Lc -42.5 | Non-text elements, placeholder text |
| Black text on #91BBF5 | 10.63:1 | AAA | Lc 65.9 | Content text, not long reading |
| #91BBF5 text on white | 1.97:1 | Fails | Lc 38.1 | Non-text elements, placeholder text |
| #91BBF5 text on black | 10.63:1 | AAA | Lc -64.3 | 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
#DEEBFD
oklch(93.6% 0.028 256.5)
-
Step 200
200
#C3DBFC
oklch(88.4% 0.052 256.4)
-
Step 300
300 (this color)
#91BBF5
oklch(78.4% 0.095 256.6)
-
Step 400
400
#5EA1FD
oklch(70.6% 0.152 256.8)
-
Step 500
500
#2986FB
oklch(63% 0.194 256.7)
-
Step 600
600
#006EE1
oklch(55.5% 0.194 256.7)
-
Step 700
700
#005CBF
oklch(49% 0.172 256.8)
-
Step 800
800
#004B9E
oklch(42.6% 0.15 256.7)
-
Step 900
900
#053F83
oklch(37.7% 0.127 256.7)
-
Step 950
950
#07264C
oklch(27.1% 0.079 255.8)
#91BBF5 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) | #A6BEF8 | 0.028 |
| Deuteranopia (no green cones) | #9AB4F4 | 0.020 |
| Tritanopia (no blue cones) | #6DC8CF | 0.084 |
| Achromatopsia (no color) | #B8B8B8 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91BBF5
#91BBF5
oklch(78.4% 0.095 256.6)
- #DBB171
#DBB171
oklch(78.4% 0.095 77.2)
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 #91BBF5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.019
- Pastel Blue #A2BFFE ΔE 0.027
- Lightblue #7BC8F6 ΔE 0.039
- Sky #82CAFC ΔE 0.039
- Light Cornflower Blue #98C1D9 ΔE 0.049
- Light Sky Blue #87CEFA ΔE 0.049
- Light Grey Blue #9DBCD4 ΔE 0.050
- Sky Blue #87CEEB ΔE 0.058
Use #91BBF5 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.