#6DD199
Closest named color: Medium Aquamarine (#66CDAA). oklch(78.5% 0.125 157.3), rgb(109, 209, 153).
Aa
Black text reads best on this color (11.23:1).
About this color
#6DD199 is a light, moderately saturated green. In OKLCH its lightness is 78%, its chroma 0.125 and its hue 157°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.029 away. Black text reads best on it, at 11.23:1.
| Hue family | Greens |
| Lightness | light (78%) |
| Chroma | moderately saturated (0.125) |
| Temperature | in between |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 11.23:1 |
| White text | 1.86:1 |
Values
| HEX | #6DD199 |
| RGB | rgb(109, 209, 153) |
| HSL | hsl(146, 52%, 62%) |
| OKLCH | oklch(78.5% 0.125 157.3) |
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 #6DD199 | 1.86:1 | Fails | Lc -39.4 | Non-text elements, placeholder text |
| Black text on #6DD199 | 11.23:1 | AAA | Lc 68.7 | Content text, not long reading |
| #6DD199 text on white | 1.86:1 | Fails | Lc 35.2 | Non-text elements, placeholder text |
| #6DD199 text on black | 11.23:1 | AAA | Lc -67.4 | Content text, not long reading |
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
#EDF9F1
oklch(97.1% 0.016 156.9)
-
Step 100
100
#D7F2E0
oklch(93.7% 0.037 156.4)
-
Step 200
200
#B4E8C7
oklch(88.6% 0.07 156.8)
-
Step 300
300 (this color)
#6DD199
oklch(78.5% 0.125 157.3)
-
Step 400
400
#00BF75
oklch(70.8% 0.168 157.1)
-
Step 500
500
#00A364
oklch(63% 0.149 157.4)
-
Step 600
600
#008953
oklch(55.5% 0.131 157.3)
-
Step 700
700
#007445
oklch(49.2% 0.117 157)
-
Step 800
800
#005F38
oklch(42.7% 0.101 157.3)
-
Step 900
900
#004F2E
oklch(37.6% 0.089 157.5)
-
Step 950
950
#002F19
oklch(26.9% 0.064 157.1)
#6DD199 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) | #D0C496 | 0.115 |
| Deuteranopia (no green cones) | #C1B99C | 0.112 |
| Tritanopia (no blue cones) | #53D0C2 | 0.058 |
| Achromatopsia (no color) | #BDBDBD | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6DD199
#6DD199
oklch(78.5% 0.125 157.3)
- #EC99D6
#EC99D6
oklch(78.5% 0.125 337)
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 #6DD199, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.029
- Emerald #06D6A0 ΔE 0.042
- Seafoam Blue #78D1B6 ΔE 0.043
- Pale Teal #82CBB2 ΔE 0.049
- Soft Green #6FC276 ΔE 0.051
- Aqua Green #12E193 ΔE 0.060
- Dark Sea Green #8FBC8F ΔE 0.061
- Greenblue #23C48B ΔE 0.063
Use #6DD199 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.