#99D1FA
Closest named color: Baby Blue (#A2CFFE). oklch(83.7% 0.082 240.7), rgb(153, 209, 250).
Aa
Black text reads best on this color (12.85:1).
About this color
#99D1FA is a light, moderately saturated blue. In OKLCH its lightness is 84%, its chroma 0.082 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Baby Blue (#A2CFFE), ΔE 0.013 away. Black text reads best on it, at 12.85:1.
| Hue family | Blues |
| Lightness | light (84%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Baby Blue (#A2CFFE) |
| Black text | 12.85:1 |
| White text | 1.63:1 |
Values
| HEX | #99D1FA |
| RGB | rgb(153, 209, 250) |
| HSL | hsl(205, 91%, 79%) |
| OKLCH | oklch(83.7% 0.082 240.7) |
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 #99D1FA | 1.63:1 | Fails | Lc -31.7 | Non-text elements, placeholder text |
| Black text on #99D1FA | 12.85:1 | AAA | Lc 75.7 | Fine for body text |
| #99D1FA text on white | 1.63:1 | Fails | Lc 28.1 | Dividers and decoration only |
| #99D1FA text on black | 12.85:1 | AAA | Lc -74.8 | 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
#EFF7FC
oklch(97.2% 0.011 234.8)
-
Step 100
100
#DDECF9
oklch(93.6% 0.024 244.1)
-
Step 200
200
#BFDEF5
oklch(88.5% 0.046 240.2)
-
Step 300
300 (this color)
#99D1FA
oklch(83.7% 0.082 240.7)
-
Step 400
400
#47AAEA
oklch(70.7% 0.131 240.7)
-
Step 500
500
#0092D9
oklch(63.1% 0.147 241)
-
Step 600
600
#007BB7
oklch(55.7% 0.129 240.7)
-
Step 700
700
#00679A
oklch(49.1% 0.113 240.5)
-
Step 800
800
#00547F
oklch(42.6% 0.099 240.7)
-
Step 900
900
#00466B
oklch(37.7% 0.087 240.8)
-
Step 950
950
#002942
oklch(26.9% 0.063 241.6)
#99D1FA 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) | #BFD0FC | 0.045 |
| Deuteranopia (no green cones) | #B2C6F9 | 0.038 |
| Tritanopia (no blue cones) | #76DBDE | 0.066 |
| Achromatopsia (no color) | #CACACA | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99D1FA
#99D1FA
oklch(83.7% 0.082 240.7)
- #F1BE93
#F1BE93
oklch(83.7% 0.082 61.5)
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 #99D1FA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Baby Blue #A2CFFE ΔE 0.013
- Light Sky Blue #87CEFA ΔE 0.021
- Sky Blue #87CEEB ΔE 0.030
- Sky #82CAFC ΔE 0.033
- Lightblue #7BC8F6 ΔE 0.042
- Light Blue #ADD8E6 ΔE 0.045
- Light Blue Grey #B7C9E2 ΔE 0.045
- Light Steel Blue #B0C4DE ΔE 0.048
Use #99D1FA 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.