#99EFCC
Closest named color: Light Turquoise (#7EF4CC). oklch(88.8% 0.097 166.6), rgb(153, 239, 204).
Aa
Black text reads best on this color (15.57:1).
About this color
#99EFCC is a light, moderately saturated green. In OKLCH its lightness is 89%, its chroma 0.097 and its hue 167°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Turquoise (#7EF4CC), ΔE 0.026 away. Black text reads best on it, at 15.57:1.
| Hue family | Greens |
| Lightness | light (89%) |
| Chroma | moderately saturated (0.097) |
| Temperature | in between |
| Nearest name | Light Turquoise (#7EF4CC) |
| Black text | 15.57:1 |
| White text | 1.34:1 |
Values
| HEX | #99EFCC |
| RGB | rgb(153, 239, 204) |
| HSL | hsl(156, 73%, 77%) |
| OKLCH | oklch(88.8% 0.097 166.6) |
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 #99EFCC | 1.34:1 | Fails | Lc -19.5 | Dividers and decoration only |
| Black text on #99EFCC | 15.57:1 | AAA | Lc 86.6 | Fine for body text |
| #99EFCC text on white | 1.34:1 | Fails | Lc 17.0 | Dividers and decoration only |
| #99EFCC text on black | 15.57:1 | AAA | Lc -86.6 | Fine 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 200.
-
Step 50
50
#ECF9F3
oklch(97.1% 0.016 166.7)
-
Step 100
100
#D4F2E5
oklch(93.6% 0.036 167.6)
-
Step 200
200 (this color)
#99EFCC
oklch(88.8% 0.097 166.6)
-
Step 300
300
#64DAAF
oklch(80.9% 0.125 166.7)
-
Step 400
400
#00BD8C
oklch(70.8% 0.147 166.2)
-
Step 500
500
#00A278
oklch(63.2% 0.13 166.5)
-
Step 600
600
#008864
oklch(55.6% 0.115 166.4)
-
Step 700
700
#007254
oklch(49% 0.101 166.9)
-
Step 800
800
#005E44
oklch(42.7% 0.088 166.3)
-
Step 900
900
#004E38
oklch(37.6% 0.078 166.4)
-
Step 950
950
#002F20
oklch(27.1% 0.056 165.8)
#99EFCC 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) | #EBE4CA | 0.097 |
| Deuteranopia (no green cones) | #DDDACE | 0.093 |
| Tritanopia (no blue cones) | #83F0E5 | 0.036 |
| Achromatopsia (no color) | #DEDEDE | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99EFCC
#99EFCC
oklch(88.8% 0.097 166.6)
- #FFC7E4
#FFC7E4
oklch(88.7% 0.073 346.2)
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 #99EFCC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Turquoise #7EF4CC ΔE 0.026
- Light Teal #90E4C1 ΔE 0.032
- Light Aqua #8CFFDB ΔE 0.041
- Aquamarine #7FFFD4 ΔE 0.043
- Hospital Green #9BE5AA ΔE 0.044
- Light Aquamarine #7BFDC7 ΔE 0.046
- Light Sage #BCECAC ΔE 0.049
- Light Seafoam #A0FEBF ΔE 0.050
Use #99EFCC 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.