#99ADEB
Closest named color: Carolina Blue (#8AB8FE). oklch(75.5% 0.092 270.3), rgb(153, 173, 235).
Aa
Black text reads best on this color (9.53:1).
About this color
#99ADEB is a medium-light, moderately saturated blue. In OKLCH its lightness is 76%, its chroma 0.092 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.036 away. Black text reads best on it, at 9.53:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 9.53:1 |
| White text | 2.20:1 |
Values
| HEX | #99ADEB |
| RGB | rgb(153, 173, 235) |
| HSL | hsl(225, 67%, 76%) |
| OKLCH | oklch(75.5% 0.092 270.3) |
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 #99ADEB | 2.20:1 | Fails | Lc -48.1 | Large or bold text, headings |
| Black text on #99ADEB | 9.53:1 | AAA | Lc 60.6 | Content text, not long reading |
| #99ADEB text on white | 2.20:1 | Fails | Lc 43.3 | Non-text elements, placeholder text |
| #99ADEB text on black | 9.53:1 | AAA | Lc -58.8 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF5
oklch(93.6% 0.016 266.3)
-
Step 200
200
#D1D9EF
oklch(88.6% 0.031 269.8)
-
Step 300
300
#B2BFE7
oklch(80.8% 0.058 270.9)
-
Step 400
400 (this color)
#99ADEB
oklch(75.5% 0.092 270.3)
-
Step 500
500
#6E85D1
oklch(63.2% 0.118 270)
-
Step 600
600
#576DBE
oklch(55.6% 0.128 270.4)
-
Step 700
700
#475BA4
oklch(49.2% 0.119 270)
-
Step 800
800
#3A4A85
oklch(42.6% 0.1 270.3)
-
Step 900
900
#323F6A
oklch(37.8% 0.076 269.8)
-
Step 950
950
#1D253E
oklch(27% 0.048 269.5)
#99ADEB 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) | #99B2EE | 0.013 |
| Deuteranopia (no green cones) | #92ABEA | 0.011 |
| Tritanopia (no blue cones) | #81B9C3 | 0.082 |
| Achromatopsia (no color) | #AFAFAF | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99ADEB
#99ADEB
oklch(75.5% 0.092 270.3)
- #C6AD69
#C6AD69
oklch(75.4% 0.092 89.9)
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 #99ADEB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.036
- Pastel Blue #A2BFFE ΔE 0.052
- Light Grey Blue #9DBCD4 ΔE 0.061
- Periwinkle Blue #8F99FB ΔE 0.065
- Light Cornflower Blue #98C1D9 ΔE 0.067
- Lightblue #7BC8F6 ΔE 0.073
- Cloudy Blue #ACC2D9 ΔE 0.075
- Sky #82CAFC ΔE 0.075
Use #99ADEB 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.