#99AAFF
Closest named color: Carolina Blue (#8AB8FE). oklch(75.9% 0.124 274.5), rgb(153, 170, 255).
Aa
Black text reads best on this color (9.54:1).
About this color
#99AAFF is a medium-light, moderately saturated blue. In OKLCH its lightness is 76%, its chroma 0.124 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.039 away. Black text reads best on it, at 9.54:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.124) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 9.54:1 |
| White text | 2.19:1 |
Values
| HEX | #99AAFF |
| RGB | rgb(153, 170, 255) |
| HSL | hsl(230, 100%, 80%) |
| OKLCH | oklch(75.9% 0.124 274.5) |
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 #99AAFF | 2.19:1 | Fails | Lc -48.0 | Large or bold text, headings |
| Black text on #99AAFF | 9.54:1 | AAA | Lc 60.7 | Content text, not long reading |
| #99AAFF text on white | 2.19:1 | Fails | Lc 43.2 | Non-text elements, placeholder text |
| #99AAFF text on black | 9.54:1 | AAA | Lc -59.0 | 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 300.
-
Step 50
50
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E3E9FF
oklch(93.6% 0.03 273.6)
-
Step 200
200
#CDD7FF
oklch(88.4% 0.056 274.2)
-
Step 300
300 (this color)
#99AAFF
oklch(75.9% 0.124 274.5)
-
Step 400
400
#8597FF
oklch(70.8% 0.153 274.4)
-
Step 500
500
#6978FF
oklch(63.1% 0.199 274.4)
-
Step 600
600
#5254FF
oklch(55.7% 0.246 274.4)
-
Step 700
700
#4337ED
oklch(49.1% 0.256 274.4)
-
Step 800
800
#3631BF
oklch(42.7% 0.211 274.3)
-
Step 900
900
#2D2F96
oklch(37.7% 0.164 274.4)
-
Step 950
950
#1A1D58
oklch(27% 0.104 274.7)
#99AAFF 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) | #8DB3FF | 0.026 |
| Deuteranopia (no green cones) | #85ABFD | 0.025 |
| Tritanopia (no blue cones) | #79BBC9 | 0.110 |
| Achromatopsia (no color) | #AFAFAF | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99AAFF
#99AAFF
oklch(75.9% 0.124 274.5)
- #CAAF4A
#CAAF4A
oklch(75.8% 0.124 94.3)
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 #99AAFF, closest first.
No curated palette has a color within ΔE 0.04 of #99AAFF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.039
- Periwinkle Blue #8F99FB ΔE 0.047
- Pastel Blue #A2BFFE ΔE 0.058
- Pastel Purple #CAA0FF ΔE 0.071
- Baby Purple #CA9BF7 ΔE 0.074
- Lilac #CEA2FD ΔE 0.075
- Pale Violet #CEAEFA ΔE 0.076
- Perrywinkle #8F8CE7 ΔE 0.081
Use #99AAFF 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.