#99AEDD
Closest named color: Light Grey Blue (#9DBCD4). oklch(75.2% 0.072 265.9), rgb(153, 174, 221).
Aa
Black text reads best on this color (9.45:1).
About this color
#99AEDD is a medium-light, moderately saturated blue. In OKLCH its lightness is 75%, its chroma 0.072 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.045 away. Black text reads best on it, at 9.45:1.
| Hue family | Blues |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 9.45:1 |
| White text | 2.22:1 |
Values
| HEX | #99AEDD |
| RGB | rgb(153, 174, 221) |
| HSL | hsl(221, 50%, 73%) |
| OKLCH | oklch(75.2% 0.072 265.9) |
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 #99AEDD | 2.22:1 | Fails | Lc -48.5 | Large or bold text, headings |
| Black text on #99AEDD | 9.45:1 | AAA | Lc 60.2 | Content text, not long reading |
| #99AEDD text on white | 2.22:1 | Fails | Lc 43.7 | Non-text elements, placeholder text |
| #99AEDD text on black | 9.45:1 | AAA | Lc -58.4 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E6EAF3
oklch(93.7% 0.013 266.7)
-
Step 200
200
#D1D9EA
oklch(88.4% 0.025 265.6)
-
Step 300
300
#B3C1DF
oklch(81% 0.045 265.5)
-
Step 400
400 (this color)
#99AEDD
oklch(75.2% 0.072 265.9)
-
Step 500
500
#6F88C2
oklch(63.1% 0.093 266)
-
Step 600
600
#5771AE
oklch(55.5% 0.1 265.7)
-
Step 700
700
#485F96
oklch(49.3% 0.093 265.9)
-
Step 800
800
#3B4D79
oklch(42.6% 0.077 266.3)
-
Step 900
900
#324162
oklch(37.8% 0.06 265)
-
Step 950
950
#1E2639
oklch(27% 0.037 266.4)
#99AEDD 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) | #9FB1DF | 0.012 |
| Deuteranopia (no green cones) | #99ABDC | 0.008 |
| Tritanopia (no blue cones) | #86B7BE | 0.064 |
| Achromatopsia (no color) | #AEAEAE | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99AEDD
#99AEDD
oklch(75.2% 0.072 265.9)
- #C3AC79
#C3AC79
oklch(75.2% 0.073 86.4)
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 #99AEDD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.045
- Carolina Blue #8AB8FE ΔE 0.049
- Light Cornflower Blue #98C1D9 ΔE 0.054
- Pastel Blue #A2BFFE ΔE 0.059
- Cool Steel #97A7B3 ΔE 0.060
- French Gray #ADB5BD ΔE 0.061
- Cloudy Blue #ACC2D9 ΔE 0.064
- Light Steel Blue #B0C4DE ΔE 0.069
Use #99AEDD 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.