#6DD378
Closest named color: Seaweed (#18D17B). oklch(78.3% 0.159 146.1), rgb(109, 211, 120).
Aa
Black text reads best on this color (11.23:1).
About this color
#6DD378 is a light, vivid green. In OKLCH its lightness is 78%, its chroma 0.159 and its hue 146°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Seaweed (#18D17B), ΔE 0.044 away. Black text reads best on it, at 11.23:1.
| Hue family | Greens |
| Lightness | light (78%) |
| Chroma | vivid (0.159) |
| Temperature | in between |
| Nearest name | Seaweed (#18D17B) |
| Black text | 11.23:1 |
| White text | 1.86:1 |
Values
| HEX | #6DD378 |
| RGB | rgb(109, 211, 120) |
| HSL | hsl(126, 54%, 63%) |
| OKLCH | oklch(78.3% 0.159 146.1) |
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 #6DD378 | 1.86:1 | Fails | Lc -39.3 | Non-text elements, placeholder text |
| Black text on #6DD378 | 11.23:1 | AAA | Lc 68.8 | Content text, not long reading |
| #6DD378 text on white | 1.86:1 | Fails | Lc 35.1 | Non-text elements, placeholder text |
| #6DD378 text on black | 11.23:1 | AAA | Lc -67.5 | 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
#EDFAED
oklch(97.2% 0.022 145.4)
-
Step 100
100
#D7F3D8
oklch(93.7% 0.046 146.2)
-
Step 200
200
#B4E9B7
oklch(88.4% 0.087 146.2)
-
Step 300
300 (this color)
#6DD378
oklch(78.3% 0.159 146.1)
-
Step 400
400
#00C140
oklch(70.6% 0.215 146.2)
-
Step 500
500
#00A636
oklch(63.1% 0.192 146.2)
-
Step 600
600
#008C2C
oklch(55.7% 0.169 146.1)
-
Step 700
700
#007623
oklch(49.2% 0.15 146)
-
Step 800
800
#00601B
oklch(42.6% 0.13 146.1)
-
Step 900
900
#005115
oklch(37.8% 0.116 146)
-
Step 950
950
#003009
oklch(26.9% 0.082 146)
#6DD378 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) | #D6C371 | 0.125 |
| Deuteranopia (no green cones) | #C7BA7E | 0.122 |
| Tritanopia (no blue cones) | #5DCFBD | 0.095 |
| Achromatopsia (no color) | #BEBEBE | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6DD378
#6DD378
oklch(78.3% 0.159 146.1)
- #EC92EE
#EC92EE
oklch(78.3% 0.158 326.2)
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 #6DD378, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Seaweed #18D17B ΔE 0.044
- Soft Green #6FC276 ΔE 0.048
- Fresh Green #69D84F ΔE 0.048
- Aqua Green #12E193 ΔE 0.049
- Weird Green #3AE57F ΔE 0.052
- Apple #6ECB3C ΔE 0.055
- Emerald #06D6A0 ΔE 0.057
- Light Moss Green #A6C875 ΔE 0.063
Use #6DD378 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.