#99E4E1
Closest named color: Celeste (#A8DADC). oklch(86.9% 0.074 192.7), rgb(153, 228, 225).
Aa
Black text reads best on this color (14.53:1).
About this color
#99E4E1 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 87%, its chroma 0.074 and its hue 193°. Its hue sits on the cool side of the wheel. The nearest named color is Celeste (#A8DADC), ΔE 0.028 away. Black text reads best on it, at 14.53:1.
| Hue family | Teals and cyans |
| Lightness | light (87%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Celeste (#A8DADC) |
| Black text | 14.53:1 |
| White text | 1.44:1 |
Values
| HEX | #99E4E1 |
| RGB | rgb(153, 228, 225) |
| HSL | hsl(178, 58%, 75%) |
| OKLCH | oklch(86.9% 0.074 192.7) |
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 #99E4E1 | 1.44:1 | Fails | Lc -24.1 | Dividers and decoration only |
| Black text on #99E4E1 | 14.53:1 | AAA | Lc 82.6 | Fine for body text |
| #99E4E1 text on white | 1.44:1 | Fails | Lc 21.1 | Dividers and decoration only |
| #99E4E1 text on black | 14.53:1 | AAA | Lc -82.2 | 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
#ECF8F8
oklch(97% 0.013 196.9)
-
Step 100
100
#D6F0EF
oklch(93.6% 0.027 193.9)
-
Step 200
200 (this color)
#99E4E1
oklch(86.9% 0.074 192.7)
-
Step 300
300
#6ED4D1
oklch(80.8% 0.096 192.9)
-
Step 400
400
#00B8B5
oklch(70.8% 0.121 192.7)
-
Step 500
500
#009E9B
oklch(63.2% 0.108 192.4)
-
Step 600
600
#008482
oklch(55.5% 0.095 192.9)
-
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)
#99E4E1 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) | #DBDDE1 | 0.078 |
| Deuteranopia (no green cones) | #CDD2E2 | 0.074 |
| Tritanopia (no blue cones) | #7DE8E3 | 0.026 |
| Achromatopsia (no color) | #D7D7D7 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99E4E1
#99E4E1
oklch(86.9% 0.074 192.7)
- #FFC1C7
#FFC1C7
oklch(86.8% 0.072 12.2)
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 #99E4E1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Celeste #A8DADC ΔE 0.028
- Powder Blue #B0E0E6 ΔE 0.028
- Robin's Egg Blue #98EFF9 ΔE 0.037
- Pale Turquoise #AFEEEE ΔE 0.040
- Light Blue #ADD8E6 ΔE 0.040
- Robin Egg Blue #8AF1FE ΔE 0.044
- Light Teal #90E4C1 ΔE 0.047
- Robin's Egg #6DEDFD ΔE 0.047
Use #99E4E1 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.