#91B2DA
Closest named color: Light Grey Blue (#9DBCD4). oklch(75.3% 0.068 253.5), rgb(145, 178, 218).
Aa
Black text reads best on this color (9.58:1).
About this color
#91B2DA is a medium-light, muted blue. In OKLCH its lightness is 75%, its chroma 0.068 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.036 away. Black text reads best on it, at 9.58:1.
| Hue family | Blues |
| Lightness | medium-light (75%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 9.58:1 |
| White text | 2.19:1 |
Values
| HEX | #91B2DA |
| RGB | rgb(145, 178, 218) |
| HSL | hsl(213, 50%, 71%) |
| OKLCH | oklch(75.3% 0.068 253.5) |
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 #91B2DA | 2.19:1 | Fails | Lc -47.8 | Large or bold text, headings |
| Black text on #91B2DA | 9.58:1 | AAA | Lc 60.9 | Content text, not long reading |
| #91B2DA text on white | 2.19:1 | Fails | Lc 43.1 | Non-text elements, placeholder text |
| #91B2DA text on black | 9.58:1 | AAA | Lc -59.1 | Large or bold text, headings |
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 400.
-
Step 50
50
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EAF2
oklch(93.5% 0.013 255.5)
-
Step 200
200
#CFDAE9
oklch(88.5% 0.024 256.1)
-
Step 300
300
#AEC3DC
oklch(80.9% 0.042 252.9)
-
Step 400
400 (this color)
#91B2DA
oklch(75.3% 0.068 253.5)
-
Step 500
500
#638CBD
oklch(63% 0.087 253.5)
-
Step 600
600
#4A76AA
oklch(55.7% 0.095 253.5)
-
Step 700
700
#3B6392
oklch(49.2% 0.088 253.5)
-
Step 800
800
#315176
oklch(42.8% 0.073 253)
-
Step 900
900
#2B435F
oklch(37.6% 0.057 253)
-
Step 950
950
#1A2738
oklch(26.9% 0.037 255.4)
#91B2DA 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) | #A3B3DC | 0.023 |
| Deuteranopia (no green cones) | #9BACD9 | 0.019 |
| Tritanopia (no blue cones) | #7ABBBF | 0.060 |
| Achromatopsia (no color) | #AFAFAF | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91B2DA
#91B2DA
oklch(75.3% 0.068 253.5)
- #CAA97F
#CAA97F
oklch(75.4% 0.068 73.2)
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 #91B2DA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.036
- Light Cornflower Blue #98C1D9 ΔE 0.044
- Carolina Blue #8AB8FE ΔE 0.051
- Cool Steel #97A7B3 ΔE 0.056
- French Gray #ADB5BD ΔE 0.056
- Cloudy Blue #ACC2D9 ΔE 0.059
- Pastel Blue #A2BFFE ΔE 0.062
- Lightblue #7BC8F6 ΔE 0.062
Use #91B2DA 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.