#99AEFF
Closest named color: Carolina Blue (#8AB8FE). oklch(76.7% 0.119 272.2), rgb(153, 174, 255).
Aa
Black text reads best on this color (9.85:1).
About this color
#99AEFF is a medium-light, moderately saturated blue. In OKLCH its lightness is 77%, its chroma 0.119 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.030 away. Black text reads best on it, at 9.85:1.
| Hue family | Blues |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 9.85:1 |
| White text | 2.13:1 |
Values
| HEX | #99AEFF |
| RGB | rgb(153, 174, 255) |
| HSL | hsl(228, 100%, 80%) |
| OKLCH | oklch(76.7% 0.119 272.2) |
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 #99AEFF | 2.13:1 | Fails | Lc -46.4 | Large or bold text, headings |
| Black text on #99AEFF | 9.85:1 | AAA | Lc 62.2 | Content text, not long reading |
| #99AEFF text on white | 2.13:1 | Fails | Lc 41.7 | Non-text elements, placeholder text |
| #99AEFF text on black | 9.85:1 | AAA | Lc -60.5 | Content text, not long reading |
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
#E2E9FF
oklch(93.5% 0.031 271.7)
-
Step 200
200
#CCD8FF
oklch(88.6% 0.055 271.8)
-
Step 300
300 (this color)
#99AEFF
oklch(76.7% 0.119 272.2)
-
Step 400
400
#8098FF
oklch(70.7% 0.153 272.1)
-
Step 500
500
#637AFF
oklch(63.2% 0.198 272.1)
-
Step 600
600
#4A56FF
oklch(55.5% 0.246 272.2)
-
Step 700
700
#3C3EE8
oklch(49.1% 0.246 272.2)
-
Step 800
800
#3136BB
oklch(42.8% 0.203 272.3)
-
Step 900
900
#293294
oklch(37.8% 0.159 272.1)
-
Step 950
950
#171F56
oklch(27% 0.099 271.7)
#99AEFF 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) | #92B6FF | 0.022 |
| Deuteranopia (no green cones) | #8AAEFD | 0.019 |
| Tritanopia (no blue cones) | #78BECB | 0.106 |
| Achromatopsia (no color) | #B2B2B2 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99AEFF
#99AEFF
oklch(76.7% 0.119 272.2)
- #CEB152
#CEB152
oklch(76.7% 0.119 92.4)
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 #99AEFF, closest first.
No curated palette has a color within ΔE 0.04 of #99AEFF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.030
- Pastel Blue #A2BFFE ΔE 0.048
- Periwinkle Blue #8F99FB ΔE 0.057
- Pale Violet #CEAEFA ΔE 0.073
- Pastel Purple #CAA0FF ΔE 0.073
- Lilac #CEA2FD ΔE 0.077
- Sky #82CAFC ΔE 0.077
- Lightblue #7BC8F6 ΔE 0.078
Use #99AEFF 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.