#18FFA7
Closest named color: Bright Sea Green (#05FFA6). oklch(88.3% 0.2 159.1), rgb(24, 255, 167).
Aa
Black text reads best on this color (15.90:1).
About this color
#18FFA7 is a light, vivid green. In OKLCH its lightness is 88%, its chroma 0.200 and its hue 159°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bright Sea Green (#05FFA6), ΔE 0.002 away. Black text reads best on it, at 15.90:1.
| Hue family | Greens |
| Lightness | light (88%) |
| Chroma | vivid (0.200) |
| Temperature | in between |
| Nearest name | Bright Sea Green (#05FFA6) |
| Black text | 15.90:1 |
| White text | 1.32:1 |
Values
| HEX | #18FFA7 |
| RGB | rgb(24, 255, 167) |
| HSL | hsl(157, 100%, 55%) |
| OKLCH | oklch(88.3% 0.2 159.1) |
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 #18FFA7 | 1.32:1 | Fails | Lc -17.4 | Dividers and decoration only |
| Black text on #18FFA7 | 15.90:1 | AAA | Lc 88.5 | Fine for body text |
| #18FFA7 text on white | 1.32:1 | Fails | Lc 15.1 | Dividers and decoration only |
| #18FFA7 text on black | 15.90:1 | AAA | Lc -88.6 | 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
#E3FDED
oklch(97.1% 0.034 158.7)
-
Step 100
100
#C0FAD8
oklch(93.6% 0.075 158.8)
-
Step 200
200 (this color)
#18FFA7
oklch(88.3% 0.2 159.1)
-
Step 300
300
#00E494
oklch(81% 0.186 159.1)
-
Step 400
400
#00BE7B
oklch(70.7% 0.162 159.2)
-
Step 500
500
#00A368
oklch(63.1% 0.145 158.9)
-
Step 600
600
#008957
oklch(55.5% 0.128 159.1)
-
Step 700
700
#007349
oklch(49% 0.112 159.4)
-
Step 800
800
#005F3B
oklch(42.8% 0.098 159.1)
-
Step 900
900
#004F30
oklch(37.7% 0.087 158.9)
-
Step 950
950
#002F1B
oklch(26.9% 0.062 159.3)
#18FFA7 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) | #FCEAA1 | 0.186 |
| Deuteranopia (no green cones) | #E4D9AD | 0.181 |
| Tritanopia (no blue cones) | #00FEE8 | 0.088 |
| Achromatopsia (no color) | #E0E0E0 | 0.201 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18FFA7
#18FFA7
oklch(88.3% 0.2 159.1)
- #FFC3EB
#FFC3EB
oklch(88.3% 0.085 339.1)
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 #18FFA7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bright Sea Green #05FFA6 ΔE 0.002
- Greenish Turquoise #00FBB0 ΔE 0.018
- Light Green Blue #56FCA2 ΔE 0.019
- Medium Spring Green #00FA9A ΔE 0.019
- Greenish Cyan #2AFEB7 ΔE 0.022
- Wintergreen #20F986 ΔE 0.038
- Turquoise Green #04F489 ΔE 0.041
- Seafoam Green #7AF9AB ΔE 0.045
Use #18FFA7 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.