#91BBDA
Closest named color: Light Grey Blue (#9DBCD4). oklch(77.3% 0.063 240.6), rgb(145, 187, 218).
Aa
Black text reads best on this color (10.32:1).
About this color
#91BBDA is a medium-light, muted blue. In OKLCH its lightness is 77%, its chroma 0.063 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.017 away. Black text reads best on it, at 10.32:1.
| Hue family | Blues |
| Lightness | medium-light (77%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 10.32:1 |
| White text | 2.03:1 |
Values
| HEX | #91BBDA |
| RGB | rgb(145, 187, 218) |
| HSL | hsl(205, 50%, 71%) |
| OKLCH | oklch(77.3% 0.063 240.6) |
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 #91BBDA | 2.03:1 | Fails | Lc -44.0 | Non-text elements, placeholder text |
| Black text on #91BBDA | 10.32:1 | AAA | Lc 64.4 | Content text, not long reading |
| #91BBDA text on white | 2.03:1 | Fails | Lc 39.5 | Non-text elements, placeholder text |
| #91BBDA text on black | 10.32:1 | AAA | Lc -62.8 | 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
#E0ECF5
oklch(93.7% 0.018 240)
-
Step 200
200
#C5DDEF
oklch(88.5% 0.036 240.3)
-
Step 300
300 (this color)
#91BBDA
oklch(77.3% 0.063 240.6)
-
Step 400
400
#62A9DA
oklch(70.8% 0.102 240.4)
-
Step 500
500
#2C92CF
oklch(63.1% 0.129 240.3)
-
Step 600
600
#007BB7
oklch(55.7% 0.129 240.7)
-
Step 700
700
#00679A
oklch(49.1% 0.113 240.5)
-
Step 800
800
#00547F
oklch(42.6% 0.099 240.7)
-
Step 900
900
#05466A
oklch(37.7% 0.085 241)
-
Step 950
950
#08293E
oklch(26.9% 0.054 241.2)
#91BBDA 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) | #AEBADC | 0.036 |
| Deuteranopia (no green cones) | #A4B2D9 | 0.031 |
| Tritanopia (no blue cones) | #79C3C5 | 0.051 |
| Achromatopsia (no color) | #B6B6B6 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91BBDA
#91BBDA
oklch(77.3% 0.063 240.6)
- #D4AC8D
#D4AC8D
oklch(77.3% 0.063 59.4)
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 #91BBDA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.017
- Light Cornflower Blue #98C1D9 ΔE 0.020
- Cloudy Blue #ACC2D9 ΔE 0.040
- Lightblue #7BC8F6 ΔE 0.047
- Light Steel Blue #B0C4DE ΔE 0.048
- French Gray #ADB5BD ΔE 0.049
- Sky Blue #87CEEB ΔE 0.050
- Sky #82CAFC ΔE 0.054
Use #91BBDA 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.