#99FFFB
Closest named color: Pale Cyan (#B7FFFA). oklch(93.7% 0.096 192.4), rgb(153, 255, 251).
Aa
Black text reads best on this color (18.05:1).
About this color
#99FFFB is a very light, moderately saturated teal or cyan. In OKLCH its lightness is 94%, its chroma 0.096 and its hue 192°. Its hue sits on the cool side of the wheel. The nearest named color is Pale Cyan (#B7FFFA), ΔE 0.029 away. Black text reads best on it, at 18.05:1.
| Hue family | Teals and cyans |
| Lightness | very light (94%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | Pale Cyan (#B7FFFA) |
| Black text | 18.05:1 |
| White text | 1.16:1 |
Values
| HEX | #99FFFB |
| RGB | rgb(153, 255, 251) |
| HSL | hsl(178, 100%, 80%) |
| OKLCH | oklch(93.7% 0.096 192.4) |
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 #99FFFB | 1.16:1 | Fails | Lc -9.0 | Not readable |
| Black text on #99FFFB | 18.05:1 | AAA | Lc 95.9 | Preferred for body text |
| #99FFFB text on white | 1.16:1 | Fails | Lc 7.6 | Not readable |
| #99FFFB text on black | 18.05:1 | AAA | Lc -96.7 | Preferred for body text |
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 100.
-
Step 50
50
#EAF9F8
oklch(97.1% 0.016 192.1)
-
Step 100
100 (this color)
#99FFFB
oklch(93.7% 0.096 192.4)
-
Step 200
200
#A4E8E5
oklch(88.5% 0.068 192.5)
-
Step 300
300
#43D9D6
oklch(80.8% 0.123 193)
-
Step 400
400
#00B8B4
oklch(70.7% 0.121 192)
-
Step 500
500
#009E9B
oklch(63.2% 0.108 192.4)
-
Step 600
600
#008582
oklch(55.7% 0.096 192)
-
Step 700
700
#006F6D
oklch(49% 0.084 192.6)
-
Step 800
800
#005B5A
oklch(42.6% 0.073 193.5)
-
Step 900
900
#004C4B
oklch(37.7% 0.064 193.2)
-
Step 950
950
#002D2C
oklch(26.9% 0.046 192.5)
#99FFFB 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) | #F4F6FB | 0.101 |
| Deuteranopia (no green cones) | #E2E8FC | 0.095 |
| Tritanopia (no blue cones) | #6CFFFD | 0.034 |
| Achromatopsia (no color) | #EEEEEE | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99FFFB
#99FFFB
oklch(93.7% 0.096 192.4)
- #FFE2E4
#FFE2E4
oklch(93.7% 0.032 13)
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 #99FFFB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pale Cyan #B7FFFA ΔE 0.029
- Pale Aqua #B8FFEB ΔE 0.034
- Duck Egg Blue #C3FBF4 ΔE 0.041
- Pale Sky Blue #BDF6FE ΔE 0.042
- Eggshell Blue #C4FFF7 ΔE 0.042
- Robin's Egg Blue #98EFF9 ΔE 0.043
- Robin Egg Blue #8AF1FE ΔE 0.043
- Pale Turquoise #AFEEEE ΔE 0.045
Use #99FFFB 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.