#91BBE7
Closest named color: Light Grey Blue (#9DBCD4). oklch(77.8% 0.078 250), rgb(145, 187, 231).
Aa
Black text reads best on this color (10.46:1).
About this color
#91BBE7 is a medium-light, moderately saturated blue. In OKLCH its lightness is 78%, its chroma 0.078 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.031 away. Black text reads best on it, at 10.46:1.
| Hue family | Blues |
| Lightness | medium-light (78%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 10.46:1 |
| White text | 2.00:1 |
Values
| HEX | #91BBE7 |
| RGB | rgb(145, 187, 231) |
| HSL | hsl(211, 64%, 74%) |
| OKLCH | oklch(77.8% 0.078 250) |
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 #91BBE7 | 2.00:1 | Fails | Lc -43.3 | Non-text elements, placeholder text |
| Black text on #91BBE7 | 10.46:1 | AAA | Lc 65.1 | Content text, not long reading |
| #91BBE7 text on white | 2.00:1 | Fails | Lc 38.8 | Non-text elements, placeholder text |
| #91BBE7 text on black | 10.46:1 | AAA | Lc -63.5 | 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
#F0F6FC
oklch(97% 0.01 247.9)
-
Step 100
100
#DFEBF9
oklch(93.5% 0.023 252.2)
-
Step 200
200
#C4DCF5
oklch(88.5% 0.043 249.4)
-
Step 300
300 (this color)
#91BBE7
oklch(77.8% 0.078 250)
-
Step 400
400
#60A5EB
oklch(70.6% 0.125 250.3)
-
Step 500
500
#2A8DE5
oklch(63.1% 0.159 250.1)
-
Step 600
600
#0076CB
oklch(55.7% 0.158 250)
-
Step 700
700
#0063AB
oklch(49.2% 0.138 249.7)
-
Step 800
800
#00518E
oklch(42.8% 0.121 249.9)
-
Step 900
900
#044376
oklch(37.7% 0.104 250.2)
-
Step 950
950
#082845
oklch(27.1% 0.065 249.8)
#91BBE7 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) | #AABCE9 | 0.031 |
| Deuteranopia (no green cones) | #A0B3E6 | 0.026 |
| Tritanopia (no blue cones) | #74C5CA | 0.066 |
| Achromatopsia (no color) | #B7B7B7 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91BBE7
#91BBE7
oklch(77.8% 0.078 250)
- #D7AE80
#D7AE80
oklch(77.7% 0.078 69.5)
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 #91BBE7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.031
- Light Cornflower Blue #98C1D9 ΔE 0.031
- Carolina Blue #8AB8FE ΔE 0.037
- Lightblue #7BC8F6 ΔE 0.038
- Pastel Blue #A2BFFE ΔE 0.040
- Sky #82CAFC ΔE 0.043
- Cloudy Blue #ACC2D9 ΔE 0.046
- Light Sky Blue #87CEFA ΔE 0.050
Use #91BBE7 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.