#99F9F1
Closest named color: Robin's Egg Blue (#98EFF9). oklch(92% 0.092 188.9), rgb(153, 249, 241).
Aa
Black text reads best on this color (17.17:1).
About this color
#99F9F1 is a very light, moderately saturated teal or cyan. In OKLCH its lightness is 92%, its chroma 0.092 and its hue 189°. Its hue sits on the cool side of the wheel. The nearest named color is Robin's Egg Blue (#98EFF9), ΔE 0.033 away. Black text reads best on it, at 17.17:1.
| Hue family | Teals and cyans |
| Lightness | very light (92%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Robin's Egg Blue (#98EFF9) |
| Black text | 17.17:1 |
| White text | 1.22:1 |
Values
| HEX | #99F9F1 |
| RGB | rgb(153, 249, 241) |
| HSL | hsl(175, 89%, 79%) |
| OKLCH | oklch(92% 0.092 188.9) |
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 #99F9F1 | 1.22:1 | Fails | Lc -12.6 | Not readable |
| Black text on #99F9F1 | 17.17:1 | AAA | Lc 92.7 | Preferred for body text |
| #99F9F1 text on white | 1.22:1 | Fails | Lc 10.9 | Not readable |
| #99F9F1 text on black | 17.17:1 | AAA | Lc -93.2 | 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
#EAF9F7
oklch(97% 0.016 187.3)
-
Step 100
100 (this color)
#99F9F1
oklch(92% 0.092 188.9)
-
Step 200
200
#A7E8E2
oklch(88.6% 0.066 188.9)
-
Step 300
300
#4FD9D0
oklch(80.9% 0.118 188.9)
-
Step 400
400
#00B8B0
oklch(70.6% 0.122 189.3)
-
Step 500
500
#009E97
oklch(63.1% 0.109 189.2)
-
Step 600
600
#00857F
oklch(55.6% 0.096 189.2)
-
Step 700
700
#00706A
oklch(49.1% 0.085 188.3)
-
Step 800
800
#005C57
oklch(42.8% 0.074 188.4)
-
Step 900
900
#004C49
oklch(37.6% 0.065 190.2)
-
Step 950
950
#002E2B
oklch(27.1% 0.047 188)
#99F9F1 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) | #EFF0F1 | 0.097 |
| Deuteranopia (no green cones) | #DEE3F2 | 0.092 |
| Tritanopia (no blue cones) | #73FDF6 | 0.029 |
| Achromatopsia (no color) | #E8E8E8 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99F9F1
#99F9F1
oklch(92% 0.092 188.9)
- #FFDADF
#FFDADF
oklch(92.1% 0.042 8.7)
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 #99F9F1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin's Egg Blue #98EFF9 ΔE 0.033
- Pale Turquoise #AFEEEE ΔE 0.033
- Robin Egg Blue #8AF1FE ΔE 0.035
- Pale Cyan #B7FFFA ΔE 0.037
- Pale Aqua #B8FFEB ΔE 0.037
- Light Aqua #8CFFDB ΔE 0.041
- Pale Sky Blue #BDF6FE ΔE 0.044
- Duck Egg Blue #C3FBF4 ΔE 0.044
Use #99F9F1 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.