#91B7DB
Closest named color: Light Grey Blue (#9DBCD4). oklch(76.4% 0.066 247.3), rgb(145, 183, 219).
Aa
Black text reads best on this color (10.00:1).
About this color
#91B7DB is a medium-light, muted blue. In OKLCH its lightness is 76%, its chroma 0.066 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.025 away. Black text reads best on it, at 10.00:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 10.00:1 |
| White text | 2.09:1 |
Values
| HEX | #91B7DB |
| RGB | rgb(145, 183, 219) |
| HSL | hsl(209, 51%, 71%) |
| OKLCH | oklch(76.4% 0.066 247.3) |
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 #91B7DB | 2.09:1 | Fails | Lc -45.7 | Large or bold text, headings |
| Black text on #91B7DB | 10.00:1 | AAA | Lc 62.9 | Content text, not long reading |
| #91B7DB text on white | 2.09:1 | Fails | Lc 41.1 | Non-text elements, placeholder text |
| #91B7DB text on black | 10.00:1 | AAA | Lc -61.2 | 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
#E0EBF6
oklch(93.5% 0.019 248)
-
Step 200
200
#C7DCF1
oklch(88.5% 0.037 248.2)
-
Step 300
300 (this color)
#91B7DB
oklch(76.4% 0.066 247.3)
-
Step 400
400
#68A6DF
oklch(70.6% 0.106 247.6)
-
Step 500
500
#398FD6
oklch(63.1% 0.135 247.1)
-
Step 600
600
#0177C4
oklch(55.5% 0.148 247.6)
-
Step 700
700
#0064A6
oklch(49.1% 0.131 247.6)
-
Step 800
800
#005289
oklch(42.7% 0.113 247.3)
-
Step 900
900
#10446E
oklch(37.6% 0.089 247.9)
-
Step 950
950
#0C2840
oklch(26.9% 0.056 247.6)
#91B7DB 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) | #A9B7DD | 0.030 |
| Deuteranopia (no green cones) | #A0AFDA | 0.026 |
| Tritanopia (no blue cones) | #79BFC3 | 0.055 |
| Achromatopsia (no color) | #B3B3B3 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91B7DB
#91B7DB
oklch(76.4% 0.066 247.3)
- #CFAB86
#CFAB86
oklch(76.4% 0.065 67.4)
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 #91B7DB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.025
- Light Cornflower Blue #98C1D9 ΔE 0.031
- Cloudy Blue #ACC2D9 ΔE 0.048
- Carolina Blue #8AB8FE ΔE 0.051
- French Gray #ADB5BD ΔE 0.052
- Lightblue #7BC8F6 ΔE 0.052
- Light Steel Blue #B0C4DE ΔE 0.055
- Pastel Blue #A2BFFE ΔE 0.057
Use #91B7DB 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.