#91B8DA
Closest named color: Light Grey Blue (#9DBCD4). oklch(76.6% 0.065 245.1), rgb(145, 184, 218).
Aa
Black text reads best on this color (10.07:1).
About this color
#91B8DA is a medium-light, muted blue. In OKLCH its lightness is 77%, its chroma 0.065 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.022 away. Black text reads best on it, at 10.07:1.
| Hue family | Blues |
| Lightness | medium-light (77%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 10.07:1 |
| White text | 2.08:1 |
Values
| HEX | #91B8DA |
| RGB | rgb(145, 184, 218) |
| HSL | hsl(208, 50%, 71%) |
| OKLCH | oklch(76.6% 0.065 245.1) |
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 #91B8DA | 2.08:1 | Fails | Lc -45.3 | Large or bold text, headings |
| Black text on #91B8DA | 10.07:1 | AAA | Lc 63.2 | Content text, not long reading |
| #91B8DA text on white | 2.08:1 | Fails | Lc 40.7 | Non-text elements, placeholder text |
| #91B8DA text on black | 10.07:1 | AAA | Lc -61.6 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0ECF6
oklch(93.7% 0.019 243)
-
Step 200
200
#C6DCF0
oklch(88.4% 0.036 245.7)
-
Step 300
300 (this color)
#91B8DA
oklch(76.6% 0.065 245.1)
-
Step 400
400
#67A7DD
oklch(70.7% 0.103 245.4)
-
Step 500
500
#3690D3
oklch(63.1% 0.131 244.9)
-
Step 600
600
#0079BF
oklch(55.7% 0.14 245)
-
Step 700
700
#0065A2
oklch(49% 0.125 245.5)
-
Step 800
800
#005385
oklch(42.7% 0.107 244.8)
-
Step 900
900
#0E456C
oklch(37.7% 0.086 245.2)
-
Step 950
950
#0B293F
oklch(27.1% 0.054 244.1)
#91B8DA 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) | #AAB8DC | 0.032 |
| Deuteranopia (no green cones) | #A1B0D9 | 0.027 |
| Tritanopia (no blue cones) | #7AC0C3 | 0.053 |
| Achromatopsia (no color) | #B4B4B4 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91B8DA
#91B8DA
oklch(76.6% 0.065 245.1)
- #D0AB88
#D0AB88
oklch(76.6% 0.064 65)
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 #91B8DA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.022
- Light Cornflower Blue #98C1D9 ΔE 0.028
- Cloudy Blue #ACC2D9 ΔE 0.046
- French Gray #ADB5BD ΔE 0.050
- Lightblue #7BC8F6 ΔE 0.051
- Carolina Blue #8AB8FE ΔE 0.053
- Light Steel Blue #B0C4DE ΔE 0.053
- Sky Blue #87CEEB ΔE 0.057
Use #91B8DA 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.