#91BBD9
Closest named color: Light Grey Blue (#9DBCD4). oklch(77.2% 0.062 239.7), rgb(145, 187, 217).
Aa
Black text reads best on this color (10.31:1).
About this color
#91BBD9 is a medium-light, muted blue. In OKLCH its lightness is 77%, its chroma 0.062 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.016 away. Black text reads best on it, at 10.31:1.
| Hue family | Blues |
| Lightness | medium-light (77%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 10.31:1 |
| White text | 2.03:1 |
Values
| HEX | #91BBD9 |
| RGB | rgb(145, 187, 217) |
| HSL | hsl(205, 49%, 71%) |
| OKLCH | oklch(77.2% 0.062 239.7) |
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 #91BBD9 | 2.03:1 | Fails | Lc -44.1 | Non-text elements, placeholder text |
| Black text on #91BBD9 | 10.31:1 | AAA | Lc 64.4 | Content text, not long reading |
| #91BBD9 text on white | 2.03:1 | Fails | Lc 39.6 | Non-text elements, placeholder text |
| #91BBD9 text on black | 10.31:1 | AAA | Lc -62.8 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0ECF5
oklch(93.7% 0.018 240)
-
Step 200
200
#C5DDEE
oklch(88.5% 0.035 238.7)
-
Step 300
300 (this color)
#91BBD9
oklch(77.2% 0.062 239.7)
-
Step 400
400
#62A9D8
oklch(70.7% 0.099 239.3)
-
Step 500
500
#2C92CE
oklch(63% 0.128 239.9)
-
Step 600
600
#007BB5
oklch(55.6% 0.127 239.8)
-
Step 700
700
#006799
oklch(49% 0.112 240)
-
Step 800
800
#00557E
oklch(42.8% 0.097 239.2)
-
Step 900
900
#054669
oklch(37.6% 0.084 240.3)
-
Step 950
950
#08293D
oklch(26.9% 0.053 239.9)
#91BBD9 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) | #AEBADB | 0.036 |
| Deuteranopia (no green cones) | #A4B2D8 | 0.031 |
| Tritanopia (no blue cones) | #7AC3C5 | 0.049 |
| Achromatopsia (no color) | #B6B6B6 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91BBD9
#91BBD9
oklch(77.2% 0.062 239.7)
- #D3AC8D
#D3AC8D
oklch(77.2% 0.062 60.2)
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 #91BBD9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.016
- Light Cornflower Blue #98C1D9 ΔE 0.019
- Cloudy Blue #ACC2D9 ΔE 0.040
- Lightblue #7BC8F6 ΔE 0.048
- Light Steel Blue #B0C4DE ΔE 0.048
- French Gray #ADB5BD ΔE 0.048
- Sky Blue #87CEEB ΔE 0.050
- Sky #82CAFC ΔE 0.055
Use #91BBD9 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.