#91B0DD
Closest named color: Light Grey Blue (#9DBCD4). oklch(75% 0.074 257.6), rgb(145, 176, 221).
Aa
Black text reads best on this color (9.45:1).
About this color
#91B0DD is a medium-light, moderately saturated blue. In OKLCH its lightness is 75%, its chroma 0.074 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.043 away. Black text reads best on it, at 9.45:1.
| Hue family | Blues |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 9.45:1 |
| White text | 2.22:1 |
Values
| HEX | #91B0DD |
| RGB | rgb(145, 176, 221) |
| HSL | hsl(216, 53%, 72%) |
| OKLCH | oklch(75% 0.074 257.6) |
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 #91B0DD | 2.22:1 | Fails | Lc -48.5 | Large or bold text, headings |
| Black text on #91B0DD | 9.45:1 | AAA | Lc 60.3 | Content text, not long reading |
| #91B0DD text on white | 2.22:1 | Fails | Lc 43.7 | Non-text elements, placeholder text |
| #91B0DD text on black | 9.45:1 | AAA | Lc -58.5 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF3
oklch(93.5% 0.014 258.3)
-
Step 200
200
#CFDAEA
oklch(88.5% 0.025 257.6)
-
Step 300
300
#AEC2DF
oklch(80.8% 0.047 257.6)
-
Step 400
400 (this color)
#91B0DD
oklch(75% 0.074 257.6)
-
Step 500
500
#658BC2
oklch(63.1% 0.094 257.6)
-
Step 600
600
#4C74AF
oklch(55.6% 0.103 258)
-
Step 700
700
#3D6196
oklch(49.1% 0.095 257.9)
-
Step 800
800
#32507A
oklch(42.8% 0.079 257)
-
Step 900
900
#2C4262
oklch(37.6% 0.062 257.7)
-
Step 950
950
#1A2739
oklch(27% 0.038 256.7)
#91B0DD 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) | #A0B2DF | 0.020 |
| Deuteranopia (no green cones) | #98ABDC | 0.015 |
| Tritanopia (no blue cones) | #7ABABF | 0.065 |
| Achromatopsia (no color) | #AEAEAE | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91B0DD
#91B0DD
oklch(75% 0.074 257.6)
- #C8A979
#C8A979
oklch(75.1% 0.073 78.2)
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 #91B0DD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.043
- Carolina Blue #8AB8FE ΔE 0.047
- Light Cornflower Blue #98C1D9 ΔE 0.050
- Cool Steel #97A7B3 ΔE 0.059
- Pastel Blue #A2BFFE ΔE 0.061
- French Gray #ADB5BD ΔE 0.062
- Cloudy Blue #ACC2D9 ΔE 0.064
- Lightblue #7BC8F6 ΔE 0.065
Use #91B0DD 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.