#99ADFF
Closest named color: Carolina Blue (#8AB8FE). oklch(76.5% 0.12 272.8), rgb(153, 173, 255).
Aa
Black text reads best on this color (9.77:1).
About this color
#99ADFF is a medium-light, moderately saturated blue. In OKLCH its lightness is 76%, its chroma 0.120 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.032 away. Black text reads best on it, at 9.77:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 9.77:1 |
| White text | 2.14:1 |
Values
| HEX | #99ADFF |
| RGB | rgb(153, 173, 255) |
| HSL | hsl(228, 100%, 80%) |
| OKLCH | oklch(76.5% 0.12 272.8) |
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 #99ADFF | 2.14:1 | Fails | Lc -46.8 | Large or bold text, headings |
| Black text on #99ADFF | 9.77:1 | AAA | Lc 61.8 | Content text, not long reading |
| #99ADFF text on white | 2.14:1 | Fails | Lc 42.1 | Non-text elements, placeholder text |
| #99ADFF text on black | 9.77:1 | AAA | Lc -60.1 | 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
#E3E9FF
oklch(93.6% 0.03 273.6)
-
Step 200
200
#CCD8FF
oklch(88.6% 0.055 271.8)
-
Step 300
300 (this color)
#99ADFF
oklch(76.5% 0.12 272.8)
-
Step 400
400
#8298FF
oklch(70.8% 0.152 272.8)
-
Step 500
500
#6579FF
oklch(63.1% 0.198 273)
-
Step 600
600
#4C56FF
oklch(55.6% 0.245 272.6)
-
Step 700
700
#3E3DE9
oklch(49.1% 0.248 272.8)
-
Step 800
800
#3234BC
oklch(42.6% 0.206 272.8)
-
Step 900
900
#2A3194
oklch(37.7% 0.16 272.8)
-
Step 950
950
#181E57
oklch(27% 0.102 272.9)
#99ADFF 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) | #91B5FF | 0.022 |
| Deuteranopia (no green cones) | #89ADFD | 0.020 |
| Tritanopia (no blue cones) | #78BDCB | 0.106 |
| Achromatopsia (no color) | #B1B1B1 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99ADFF
#99ADFF
oklch(76.5% 0.12 272.8)
- #CDB050
#CDB050
oklch(76.4% 0.12 92.5)
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 #99ADFF, closest first.
No curated palette has a color within ΔE 0.04 of #99ADFF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.032
- Pastel Blue #A2BFFE ΔE 0.051
- Periwinkle Blue #8F99FB ΔE 0.054
- Pastel Purple #CAA0FF ΔE 0.073
- Pale Violet #CEAEFA ΔE 0.074
- Lilac #CEA2FD ΔE 0.076
- Baby Purple #CA9BF7 ΔE 0.077
- Sky #82CAFC ΔE 0.080
Use #99ADFF 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.