#91B2DF
Closest named color: Light Grey Blue (#9DBCD4). oklch(75.5% 0.075 256.3), rgb(145, 178, 223).
Aa
Black text reads best on this color (9.63:1).
About this color
#91B2DF is a medium-light, moderately saturated blue. In OKLCH its lightness is 76%, its chroma 0.075 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.039 away. Black text reads best on it, at 9.63:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 9.63:1 |
| White text | 2.17:1 |
Values
| HEX | #91B2DF |
| RGB | rgb(145, 178, 223) |
| HSL | hsl(215, 55%, 72%) |
| OKLCH | oklch(75.5% 0.075 256.3) |
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 #91B2DF | 2.17:1 | Fails | Lc -47.5 | Large or bold text, headings |
| Black text on #91B2DF | 9.63:1 | AAA | Lc 61.1 | Content text, not long reading |
| #91B2DF text on white | 2.17:1 | Fails | Lc 42.8 | Non-text elements, placeholder text |
| #91B2DF text on black | 9.63:1 | AAA | Lc -59.4 | 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
#CEDAEB
oklch(88.4% 0.027 257)
-
Step 300
300
#AEC2DF
oklch(80.8% 0.047 257.6)
-
Step 400
400 (this color)
#91B2DF
oklch(75.5% 0.075 256.3)
-
Step 500
500
#638BC3
oklch(63.1% 0.096 256.9)
-
Step 600
600
#4975AF
oklch(55.7% 0.103 255.8)
-
Step 700
700
#3A6296
oklch(49.1% 0.095 255.6)
-
Step 800
800
#31507A
oklch(42.8% 0.079 256.4)
-
Step 900
900
#2B4262
oklch(37.6% 0.062 256.8)
-
Step 950
950
#192739
oklch(26.9% 0.039 255.1)
#91B2DF 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) | #A2B4E1 | 0.023 |
| Deuteranopia (no green cones) | #99ACDE | 0.018 |
| Tritanopia (no blue cones) | #78BCC1 | 0.066 |
| Achromatopsia (no color) | #B0B0B0 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91B2DF
#91B2DF
oklch(75.5% 0.075 256.3)
- #CBAA7A
#CBAA7A
oklch(75.6% 0.075 76.6)
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 #91B2DF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.039
- Carolina Blue #8AB8FE ΔE 0.044
- Light Cornflower Blue #98C1D9 ΔE 0.046
- Pastel Blue #A2BFFE ΔE 0.056
- Lightblue #7BC8F6 ΔE 0.060
- Cloudy Blue #ACC2D9 ΔE 0.060
- French Gray #ADB5BD ΔE 0.062
- Cool Steel #97A7B3 ΔE 0.062
Use #91B2DF 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.