#18E7C8
Closest named color: Aqua Marine (#2EE8BB). oklch(83.2% 0.15 178.1), rgb(24, 231, 200).
Aa
Black text reads best on this color (13.30:1).
About this color
#18E7C8 is a light, vivid teal or cyan. In OKLCH its lightness is 83%, its chroma 0.150 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Aqua Marine (#2EE8BB), ΔE 0.019 away. Black text reads best on it, at 13.30:1.
| Hue family | Teals and cyans |
| Lightness | light (83%) |
| Chroma | vivid (0.150) |
| Temperature | cool |
| Nearest name | Aqua Marine (#2EE8BB) |
| Black text | 13.30:1 |
| White text | 1.57:1 |
Values
| HEX | #18E7C8 |
| RGB | rgb(24, 231, 200) |
| HSL | hsl(171, 81%, 50%) |
| OKLCH | oklch(83.2% 0.15 178.1) |
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 #18E7C8 | 1.57:1 | Fails | Lc -29.1 | Dividers and decoration only |
| Black text on #18E7C8 | 13.30:1 | AAA | Lc 78.1 | Fine for body text |
| #18E7C8 text on white | 1.57:1 | Fails | Lc 25.7 | Dividers and decoration only |
| #18E7C8 text on black | 13.30:1 | AAA | Lc -77.4 | 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
#E8FAF5
oklch(97% 0.02 177.5)
-
Step 100
100
#CCF4EA
oklch(93.6% 0.043 178.5)
-
Step 200
200
#9BECD9
oklch(88.6% 0.084 177.8)
-
Step 300
300 (this color)
#18E7C8
oklch(83.2% 0.15 178.1)
-
Step 400
400
#00BAA1
oklch(70.6% 0.129 178.5)
-
Step 500
500
#00A08A
oklch(63.2% 0.116 178.3)
-
Step 600
600
#008673
oklch(55.5% 0.102 178.1)
-
Step 700
700
#007161
oklch(49.1% 0.09 178.4)
-
Step 800
800
#005D4F
oklch(42.8% 0.079 177.8)
-
Step 900
900
#004D42
oklch(37.6% 0.069 179)
-
Step 950
950
#002E26
oklch(26.9% 0.05 177.5)
#18E7C8 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) | #DDD8C7 | 0.158 |
| Deuteranopia (no green cones) | #C5C6CA | 0.151 |
| Tritanopia (no blue cones) | #00EBDE | 0.029 |
| Achromatopsia (no color) | #CECECE | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18E7C8
#18E7C8
oklch(83.2% 0.15 178.1)
- #FFACC7
#FFACC7
oklch(83.2% 0.102 358.5)
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 #18E7C8, closest first.
No curated palette has a color within ΔE 0.04 of #18E7C8.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Marine #2EE8BB ΔE 0.019
- Turquoise #40E0D0 ΔE 0.028
- Bright Teal #01F9C6 ΔE 0.052
- Bright Aqua #0BF9EA ΔE 0.058
- Emerald #06D6A0 ΔE 0.063
- Medium Turquoise #48D1CC ΔE 0.064
- Light Teal #90E4C1 ΔE 0.064
- Light Turquoise #7EF4CC ΔE 0.066
Use #18E7C8 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.