#99ADE3
Closest named color: Carolina Blue (#8AB8FE). oklch(75.2% 0.081 268.7), rgb(153, 173, 227).
Aa
Black text reads best on this color (9.44:1).
About this color
#99ADE3 is a medium-light, moderately saturated blue. In OKLCH its lightness is 75%, its chroma 0.081 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.043 away. Black text reads best on it, at 9.44:1.
| Hue family | Blues |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 9.44:1 |
| White text | 2.22:1 |
Values
| HEX | #99ADE3 |
| RGB | rgb(153, 173, 227) |
| HSL | hsl(224, 57%, 75%) |
| OKLCH | oklch(75.2% 0.081 268.7) |
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 #99ADE3 | 2.22:1 | Fails | Lc -48.6 | Large or bold text, headings |
| Black text on #99ADE3 | 9.44:1 | AAA | Lc 60.2 | Content text, not long reading |
| #99ADE3 text on white | 2.22:1 | Fails | Lc 43.8 | Non-text elements, placeholder text |
| #99ADE3 text on black | 9.44:1 | 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
#E6EAF4
oklch(93.7% 0.014 268.5)
-
Step 200
200
#D1D9EC
oklch(88.5% 0.028 267.5)
-
Step 300
300
#B3C0E2
oklch(80.9% 0.05 268.8)
-
Step 400
400 (this color)
#99ADE3
oklch(75.2% 0.081 268.7)
-
Step 500
500
#6F86C9
oklch(63% 0.105 268.9)
-
Step 600
600
#586FB5
oklch(55.6% 0.112 268.8)
-
Step 700
700
#485D9C
oklch(49.2% 0.104 268.5)
-
Step 800
800
#3B4C7F
oklch(42.7% 0.088 268.6)
-
Step 900
900
#334066
oklch(37.9% 0.067 268.7)
-
Step 950
950
#1E253C
oklch(27% 0.044 270.3)
#99ADE3 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) | #9CB1E5 | 0.012 |
| Deuteranopia (no green cones) | #95ABE2 | 0.008 |
| Tritanopia (no blue cones) | #84B8BF | 0.074 |
| Achromatopsia (no color) | #AEAEAE | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99ADE3
#99ADE3
oklch(75.2% 0.081 268.7)
- #C4AC72
#C4AC72
oklch(75.2% 0.081 87.9)
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 #99ADE3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.043
- Light Grey Blue #9DBCD4 ΔE 0.053
- Pastel Blue #A2BFFE ΔE 0.056
- Light Cornflower Blue #98C1D9 ΔE 0.061
- Cool Steel #97A7B3 ΔE 0.069
- Cloudy Blue #ACC2D9 ΔE 0.069
- French Gray #ADB5BD ΔE 0.070
- Lightblue #7BC8F6 ΔE 0.072
Use #99ADE3 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.