#99CBFF
Closest named color: Baby Blue (#A2CFFE). oklch(82.6% 0.09 249.9), rgb(153, 203, 255).
Aa
Black text reads best on this color (12.34:1).
About this color
#99CBFF is a light, moderately saturated blue. In OKLCH its lightness is 83%, its chroma 0.090 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Baby Blue (#A2CFFE), ΔE 0.016 away. Black text reads best on it, at 12.34:1.
| Hue family | Blues |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Baby Blue (#A2CFFE) |
| Black text | 12.34:1 |
| White text | 1.70:1 |
Values
| HEX | #99CBFF |
| RGB | rgb(153, 203, 255) |
| HSL | hsl(211, 100%, 80%) |
| OKLCH | oklch(82.6% 0.09 249.9) |
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 #99CBFF | 1.70:1 | Fails | Lc -34.2 | Non-text elements, placeholder text |
| Black text on #99CBFF | 12.34:1 | AAA | Lc 73.5 | Content text, not long reading |
| #99CBFF text on white | 1.70:1 | Fails | Lc 30.4 | Non-text elements, placeholder text |
| #99CBFF text on black | 12.34:1 | AAA | Lc -72.4 | 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DDECFB
oklch(93.6% 0.026 248.1)
-
Step 200
200
#C1DCFA
oklch(88.4% 0.051 251.1)
-
Step 300
300 (this color)
#99CBFF
oklch(82.6% 0.09 249.9)
-
Step 400
400
#51A5F7
oklch(70.6% 0.146 250.2)
-
Step 500
500
#008CEF
oklch(63% 0.178 249.9)
-
Step 600
600
#0076CA
oklch(55.7% 0.156 249.7)
-
Step 700
700
#0063AB
oklch(49.2% 0.138 249.7)
-
Step 800
800
#00518E
oklch(42.8% 0.121 249.9)
-
Step 900
900
#004377
oklch(37.7% 0.106 249.9)
-
Step 950
950
#00274A
oklch(26.9% 0.077 250.5)
#99CBFF 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) | #B7CCFF | 0.036 |
| Deuteranopia (no green cones) | #AAC2FE | 0.029 |
| Tritanopia (no blue cones) | #74D7DC | 0.078 |
| Achromatopsia (no color) | #C6C6C6 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99CBFF
#99CBFF
oklch(82.6% 0.09 249.9)
- #ECBC85
#ECBC85
oklch(82.6% 0.09 69.9)
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 #99CBFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Baby Blue #A2CFFE ΔE 0.016
- Light Sky Blue #87CEFA ΔE 0.022
- Sky #82CAFC ΔE 0.025
- Pastel Blue #A2BFFE ΔE 0.032
- Lightblue #7BC8F6 ΔE 0.036
- Sky Blue #87CEEB ΔE 0.039
- Light Periwinkle #C1C6FC ΔE 0.048
- Light Steel Blue #B0C4DE ΔE 0.049
Use #99CBFF 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.