#91BBD6
Closest named color: Light Grey Blue (#9DBCD4). oklch(77.1% 0.059 236.7), rgb(145, 187, 214).
Aa
Black text reads best on this color (10.28:1).
About this color
#91BBD6 is a medium-light, muted blue. In OKLCH its lightness is 77%, its chroma 0.059 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.015 away. Black text reads best on it, at 10.28:1.
| Hue family | Blues |
| Lightness | medium-light (77%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 10.28:1 |
| White text | 2.04:1 |
Values
| HEX | #91BBD6 |
| RGB | rgb(145, 187, 214) |
| HSL | hsl(203, 46%, 70%) |
| OKLCH | oklch(77.1% 0.059 236.7) |
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 #91BBD6 | 2.04:1 | Fails | Lc -44.2 | Non-text elements, placeholder text |
| Black text on #91BBD6 | 10.28:1 | AAA | Lc 64.2 | Content text, not long reading |
| #91BBD6 text on white | 2.04:1 | Fails | Lc 39.7 | Non-text elements, placeholder text |
| #91BBD6 text on black | 10.28:1 | AAA | Lc -62.6 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF4
oklch(93.6% 0.017 236.7)
-
Step 200
200
#C6DDEC
oklch(88.5% 0.032 236.4)
-
Step 300
300 (this color)
#91BBD6
oklch(77.1% 0.059 236.7)
-
Step 400
400
#63AAD4
oklch(70.8% 0.094 236.2)
-
Step 500
500
#2D93C9
oklch(63% 0.121 237)
-
Step 600
600
#007CB0
oklch(55.5% 0.121 236.7)
-
Step 700
700
#006895
oklch(49% 0.107 237)
-
Step 800
800
#00557B
oklch(42.6% 0.093 237.2)
-
Step 900
900
#064766
oklch(37.7% 0.079 236.9)
-
Step 950
950
#092A3C
oklch(27.1% 0.05 237)
#91BBD6 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) | #AFBAD7 | 0.037 |
| Deuteranopia (no green cones) | #A5B2D6 | 0.033 |
| Tritanopia (no blue cones) | #7BC2C4 | 0.045 |
| Achromatopsia (no color) | #B5B5B5 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91BBD6
#91BBD6
oklch(77.1% 0.059 236.7)
- #D3AC90
#D3AC90
oklch(77.2% 0.06 57.4)
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 #91BBD6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.015
- Light Cornflower Blue #98C1D9 ΔE 0.019
- Cloudy Blue #ACC2D9 ΔE 0.040
- French Gray #ADB5BD ΔE 0.045
- Light Steel Blue #B0C4DE ΔE 0.048
- Lightblue #7BC8F6 ΔE 0.050
- Sky Blue #87CEEB ΔE 0.051
- Sky #82CAFC ΔE 0.058
Use #91BBD6 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.