#91B8DC
Closest named color: Light Grey Blue (#9DBCD4). oklch(76.7% 0.067 246.6), rgb(145, 184, 220).
Aa
Black text reads best on this color (10.09:1).
About this color
#91B8DC is a medium-light, muted blue. In OKLCH its lightness is 77%, its chroma 0.067 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.023 away. Black text reads best on it, at 10.09:1.
| Hue family | Blues |
| Lightness | medium-light (77%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 10.09:1 |
| White text | 2.08:1 |
Values
| HEX | #91B8DC |
| RGB | rgb(145, 184, 220) |
| HSL | hsl(209, 52%, 72%) |
| OKLCH | oklch(76.7% 0.067 246.6) |
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 #91B8DC | 2.08:1 | Fails | Lc -45.2 | Large or bold text, headings |
| Black text on #91B8DC | 10.09:1 | AAA | Lc 63.3 | Content text, not long reading |
| #91B8DC text on white | 2.08:1 | Fails | Lc 40.6 | Non-text elements, placeholder text |
| #91B8DC text on black | 10.09:1 | AAA | Lc -61.7 | 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
#C6DCF1
oklch(88.5% 0.037 247)
-
Step 300
300 (this color)
#91B8DC
oklch(76.7% 0.067 246.6)
-
Step 400
400
#66A7DF
oklch(70.7% 0.106 246)
-
Step 500
500
#368FD7
oklch(63.1% 0.137 246.9)
-
Step 600
600
#0078C2
oklch(55.6% 0.145 246.5)
-
Step 700
700
#0065A4
oklch(49.2% 0.127 246.3)
-
Step 800
800
#005288
oklch(42.7% 0.112 246.9)
-
Step 900
900
#0E456E
oklch(37.9% 0.089 246.4)
-
Step 950
950
#0B2840
oklch(26.9% 0.056 247)
#91B8DC 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) | #AAB8DE | 0.032 |
| Deuteranopia (no green cones) | #A0B0DB | 0.026 |
| Tritanopia (no blue cones) | #79C0C4 | 0.055 |
| Achromatopsia (no color) | #B4B4B4 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91B8DC
#91B8DC
oklch(76.7% 0.067 246.6)
- #D1AB86
#D1AB86
oklch(76.6% 0.067 65.8)
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 #91B8DC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.023
- Light Cornflower Blue #98C1D9 ΔE 0.029
- Cloudy Blue #ACC2D9 ΔE 0.046
- Lightblue #7BC8F6 ΔE 0.050
- Carolina Blue #8AB8FE ΔE 0.050
- French Gray #ADB5BD ΔE 0.052
- Light Steel Blue #B0C4DE ΔE 0.053
- Pastel Blue #A2BFFE ΔE 0.055
Use #91B8DC 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.