#99CFEF
Closest named color: Sky Blue (#87CEEB). oklch(82.8% 0.072 234.8), rgb(153, 207, 239).
Aa
Black text reads best on this color (12.52:1).
About this color
#99CFEF is a light, moderately saturated blue. In OKLCH its lightness is 83%, its chroma 0.072 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Sky Blue (#87CEEB), ΔE 0.021 away. Black text reads best on it, at 12.52:1.
| Hue family | Blues |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Sky Blue (#87CEEB) |
| Black text | 12.52:1 |
| White text | 1.67:1 |
Values
| HEX | #99CFEF |
| RGB | rgb(153, 207, 239) |
| HSL | hsl(202, 73%, 77%) |
| OKLCH | oklch(82.8% 0.072 234.8) |
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 #99CFEF | 1.67:1 | Fails | Lc -33.3 | Non-text elements, placeholder text |
| Black text on #99CFEF | 12.52:1 | AAA | Lc 74.2 | Content text, not long reading |
| #99CFEF text on white | 1.67:1 | Fails | Lc 29.6 | Dividers and decoration only |
| #99CFEF text on black | 12.52:1 | AAA | Lc -73.3 | 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
#F0F7FB
oklch(97.2% 0.009 232.4)
-
Step 100
100
#DDECF6
oklch(93.5% 0.021 236.8)
-
Step 200
200
#C1DEF0
oklch(88.5% 0.04 235.2)
-
Step 300
300 (this color)
#99CFEF
oklch(82.8% 0.072 234.8)
-
Step 400
400
#4DACDE
oklch(70.8% 0.115 234.7)
-
Step 500
500
#0095CE
oklch(63.2% 0.133 234.7)
-
Step 600
600
#007DAE
oklch(55.7% 0.118 234.9)
-
Step 700
700
#006993
oklch(49.2% 0.104 234.9)
-
Step 800
800
#005679
oklch(42.8% 0.09 234.7)
-
Step 900
900
#004765
oklch(37.6% 0.08 234.9)
-
Step 950
950
#002A3E
oklch(26.9% 0.057 235.2)
#99CFEF 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) | #C0CDF1 | 0.047 |
| Deuteranopia (no green cones) | #B4C4EF | 0.041 |
| Tritanopia (no blue cones) | #7BD8D9 | 0.055 |
| Achromatopsia (no color) | #C8C8C8 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99CFEF
#99CFEF
oklch(82.8% 0.072 234.8)
- #ECBB9B
#ECBB9B
oklch(82.8% 0.071 54.6)
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 #99CFEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky Blue #87CEEB ΔE 0.021
- Light Sky Blue #87CEFA ΔE 0.024
- Baby Blue #A2CFFE ΔE 0.025
- Sky #82CAFC ΔE 0.035
- Light Blue Grey #B7C9E2 ΔE 0.038
- Light Steel Blue #B0C4DE ΔE 0.038
- Light Blue #ADD8E6 ΔE 0.039
- Lightblue #7BC8F6 ΔE 0.040
Use #99CFEF 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.