#99C8FB
Closest named color: Baby Blue (#A2CFFE). oklch(81.8% 0.088 251), rgb(153, 200, 251).
Aa
Black text reads best on this color (12.00:1).
About this color
#99C8FB is a light, moderately saturated blue. In OKLCH its lightness is 82%, its chroma 0.088 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Baby Blue (#A2CFFE), ΔE 0.022 away. Black text reads best on it, at 12.00:1.
| Hue family | Blues |
| Lightness | light (82%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Baby Blue (#A2CFFE) |
| Black text | 12.00:1 |
| White text | 1.74:1 |
Values
| HEX | #99C8FB |
| RGB | rgb(153, 200, 251) |
| HSL | hsl(211, 92%, 79%) |
| OKLCH | oklch(81.8% 0.088 251) |
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 #99C8FB | 1.74:1 | Fails | Lc -35.7 | Non-text elements, placeholder text |
| Black text on #99C8FB | 12.00:1 | AAA | Lc 72.0 | Content text, not long reading |
| #99C8FB text on white | 1.74:1 | Fails | Lc 31.8 | Non-text elements, placeholder text |
| #99C8FB text on black | 12.00:1 | AAA | Lc -70.9 | 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
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DEECFB
oklch(93.7% 0.025 250)
-
Step 200
200
#C2DCF9
oklch(88.5% 0.049 251.2)
-
Step 300
300 (this color)
#99C8FB
oklch(81.8% 0.088 251)
-
Step 400
400
#57A5F5
oklch(70.7% 0.141 251)
-
Step 500
500
#0D8BF1
oklch(63% 0.18 251.2)
-
Step 600
600
#0075CD
oklch(55.6% 0.161 250.9)
-
Step 700
700
#0062AE
oklch(49.1% 0.143 251.1)
-
Step 800
800
#005090
oklch(42.7% 0.125 251.1)
-
Step 900
900
#004379
oklch(37.8% 0.109 250.7)
-
Step 950
950
#032749
oklch(27% 0.074 251.3)
#99C8FB 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) | #B4C9FD | 0.033 |
| Deuteranopia (no green cones) | #A9BFFA | 0.028 |
| Tritanopia (no blue cones) | #77D4D9 | 0.076 |
| Achromatopsia (no color) | #C4C4C4 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99C8FB
#99C8FB
oklch(81.8% 0.088 251)
- #E8BA84
#E8BA84
oklch(81.8% 0.088 70.6)
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 #99C8FB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Baby Blue #A2CFFE ΔE 0.022
- Light Sky Blue #87CEFA ΔE 0.024
- Sky #82CAFC ΔE 0.024
- Pastel Blue #A2BFFE ΔE 0.027
- Lightblue #7BC8F6 ΔE 0.033
- Sky Blue #87CEEB ΔE 0.038
- Light Steel Blue #B0C4DE ΔE 0.045
- Light Cornflower Blue #98C1D9 ΔE 0.048
Use #99C8FB 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.