#91B4DD
Closest named color: Light Grey Blue (#9DBCD4). oklch(75.9% 0.071 252.7), rgb(145, 180, 221).
Aa
Black text reads best on this color (9.77:1).
About this color
#91B4DD is a medium-light, moderately saturated blue. In OKLCH its lightness is 76%, its chroma 0.071 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.033 away. Black text reads best on it, at 9.77:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 9.77:1 |
| White text | 2.14:1 |
Values
| HEX | #91B4DD |
| RGB | rgb(145, 180, 221) |
| HSL | hsl(212, 53%, 72%) |
| OKLCH | oklch(75.9% 0.071 252.7) |
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 #91B4DD | 2.14:1 | Fails | Lc -46.8 | Large or bold text, headings |
| Black text on #91B4DD | 9.77:1 | AAA | Lc 61.8 | Content text, not long reading |
| #91B4DD text on white | 2.14:1 | Fails | Lc 42.1 | Non-text elements, placeholder text |
| #91B4DD text on black | 9.77:1 | AAA | Lc -60.1 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF8
oklch(93.6% 0.021 254.9)
-
Step 200
200
#C7DBF3
oklch(88.4% 0.04 253)
-
Step 300
300 (this color)
#91B4DD
oklch(75.9% 0.071 252.7)
-
Step 400
400
#6CA4E5
oklch(70.7% 0.113 253)
-
Step 500
500
#418CDE
oklch(63.2% 0.145 252.8)
-
Step 600
600
#1A74CB
oklch(55.6% 0.156 252.6)
-
Step 700
700
#0961B0
oklch(49.1% 0.146 252.7)
-
Step 800
800
#0F508E
oklch(42.8% 0.119 252.4)
-
Step 900
900
#164372
oklch(37.8% 0.094 252.5)
-
Step 950
950
#0E2743
oklch(26.9% 0.061 253.2)
#91B4DD 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) | #A5B5DF | 0.026 |
| Deuteranopia (no green cones) | #9CADDC | 0.022 |
| Tritanopia (no blue cones) | #79BDC2 | 0.060 |
| Achromatopsia (no color) | #B1B1B1 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91B4DD
#91B4DD
oklch(75.9% 0.071 252.7)
- #CDAA7F
#CDAA7F
oklch(75.9% 0.071 72.2)
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 #91B4DD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.033
- Light Cornflower Blue #98C1D9 ΔE 0.040
- Carolina Blue #8AB8FE ΔE 0.046
- Cloudy Blue #ACC2D9 ΔE 0.055
- Pastel Blue #A2BFFE ΔE 0.056
- Lightblue #7BC8F6 ΔE 0.056
- French Gray #ADB5BD ΔE 0.057
- Cool Steel #97A7B3 ΔE 0.061
Use #91B4DD 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.