#18EBC3
Closest named color: Aqua Marine (#2EE8BB). oklch(84% 0.157 174.1), rgb(24, 235, 195).
Aa
Black text reads best on this color (13.71:1).
About this color
#18EBC3 is a light, vivid teal or cyan. In OKLCH its lightness is 84%, its chroma 0.157 and its hue 174°. Its hue sits on the cool side of the wheel. The nearest named color is Aqua Marine (#2EE8BB), ΔE 0.011 away. Black text reads best on it, at 13.71:1.
| Hue family | Teals and cyans |
| Lightness | light (84%) |
| Chroma | vivid (0.157) |
| Temperature | cool |
| Nearest name | Aqua Marine (#2EE8BB) |
| Black text | 13.71:1 |
| White text | 1.53:1 |
Values
| HEX | #18EBC3 |
| RGB | rgb(24, 235, 195) |
| HSL | hsl(169, 84%, 51%) |
| OKLCH | oklch(84% 0.157 174.1) |
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 #18EBC3 | 1.53:1 | Fails | Lc -27.2 | Dividers and decoration only |
| Black text on #18EBC3 | 13.71:1 | AAA | Lc 79.8 | Fine for body text |
| #18EBC3 text on white | 1.53:1 | Fails | Lc 24.0 | Dividers and decoration only |
| #18EBC3 text on black | 13.71:1 | AAA | Lc -79.2 | 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 300.
-
Step 50
50
#E8FAF4
oklch(97% 0.02 174)
-
Step 100
100
#CCF4E8
oklch(93.6% 0.044 175.2)
-
Step 200
200
#9AECD5
oklch(88.4% 0.087 174.6)
-
Step 300
300 (this color)
#18EBC3
oklch(84% 0.157 174.1)
-
Step 400
400
#00BB9A
oklch(70.7% 0.134 174)
-
Step 500
500
#00A084
oklch(63% 0.119 174.3)
-
Step 600
600
#00876F
oklch(55.6% 0.106 174.3)
-
Step 700
700
#00715D
oklch(49% 0.093 174.7)
-
Step 800
800
#005D4C
oklch(42.7% 0.081 174.6)
-
Step 900
900
#004E3F
oklch(37.8% 0.072 174.1)
-
Step 950
950
#002E25
oklch(26.9% 0.05 175.6)
#18EBC3 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) | #E2DBC1 | 0.162 |
| Deuteranopia (no green cones) | #CBC9C6 | 0.158 |
| Tritanopia (no blue cones) | #00EEDF | 0.037 |
| Achromatopsia (no color) | #D1D1D1 | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18EBC3
#18EBC3
oklch(84% 0.157 174.1)
- #FFAFCF
#FFAFCF
oklch(83.9% 0.101 353.8)
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 #18EBC3, closest first.
No curated palette has a color within ΔE 0.04 of #18EBC3.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Marine #2EE8BB ΔE 0.011
- Bright Teal #01F9C6 ΔE 0.038
- Turquoise #40E0D0 ΔE 0.042
- Bright Aqua #0BF9EA ΔE 0.057
- Greenish Turquoise #00FBB0 ΔE 0.058
- Light Turquoise #7EF4CC ΔE 0.060
- Greenish Cyan #2AFEB7 ΔE 0.061
- Aqua Green #12E193 ΔE 0.063
Use #18EBC3 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.