#91B3DD
Closest named color: Light Grey Blue (#9DBCD4). oklch(75.7% 0.071 254), rgb(145, 179, 221).
Aa
Black text reads best on this color (9.69:1).
About this color
#91B3DD is a medium-light, moderately saturated blue. In OKLCH its lightness is 76%, its chroma 0.071 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.035 away. Black text reads best on it, at 9.69:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 9.69:1 |
| White text | 2.16:1 |
Values
| HEX | #91B3DD |
| RGB | rgb(145, 179, 221) |
| HSL | hsl(213, 53%, 72%) |
| OKLCH | oklch(75.7% 0.071 254) |
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 #91B3DD | 2.16:1 | Fails | Lc -47.2 | Large or bold text, headings |
| Black text on #91B3DD | 9.69:1 | AAA | Lc 61.4 | Content text, not long reading |
| #91B3DD text on white | 2.16:1 | Fails | Lc 42.5 | Non-text elements, placeholder text |
| #91B3DD text on black | 9.69:1 | AAA | Lc -59.7 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EAF3
oklch(93.5% 0.014 258.3)
-
Step 200
200
#CEDAEA
oklch(88.4% 0.026 255.6)
-
Step 300
300
#ADC3DD
oklch(80.9% 0.044 252.7)
-
Step 400
400 (this color)
#91B3DD
oklch(75.7% 0.071 254)
-
Step 500
500
#628CC0
oklch(63.1% 0.092 254.3)
-
Step 600
600
#4875AC
oklch(55.5% 0.1 254.3)
-
Step 700
700
#396294
oklch(49% 0.093 254.3)
-
Step 800
800
#305178
oklch(42.8% 0.076 253.6)
-
Step 900
900
#2B4361
oklch(37.8% 0.06 254.6)
-
Step 950
950
#192739
oklch(26.9% 0.039 255.1)
#91B3DD 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) | #A4B4DF | 0.025 |
| Deuteranopia (no green cones) | #9BADDC | 0.019 |
| Tritanopia (no blue cones) | #79BCC1 | 0.062 |
| Achromatopsia (no color) | #B0B0B0 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91B3DD
#91B3DD
oklch(75.7% 0.071 254)
- #CCAA7D
#CCAA7D
oklch(75.8% 0.072 74.2)
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 #91B3DD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.035
- Light Cornflower Blue #98C1D9 ΔE 0.042
- Carolina Blue #8AB8FE ΔE 0.046
- Cloudy Blue #ACC2D9 ΔE 0.057
- Pastel Blue #A2BFFE ΔE 0.057
- French Gray #ADB5BD ΔE 0.058
- Lightblue #7BC8F6 ΔE 0.059
- Cool Steel #97A7B3 ΔE 0.060
Use #91B3DD 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.