#6ECC91
Closest named color: Medium Aquamarine (#66CDAA). oklch(77.1% 0.124 154.7), rgb(110, 204, 145).
Aa
Black text reads best on this color (10.70:1).
About this color
#6ECC91 is a medium-light, moderately saturated green. In OKLCH its lightness is 77%, its chroma 0.124 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.033 away. Black text reads best on it, at 10.70:1.
| Hue family | Greens |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.124) |
| Temperature | in between |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 10.70:1 |
| White text | 1.96:1 |
Values
| HEX | #6ECC91 |
| RGB | rgb(110, 204, 145) |
| HSL | hsl(142, 48%, 62%) |
| OKLCH | oklch(77.1% 0.124 154.7) |
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 #6ECC91 | 1.96:1 | Fails | Lc -41.9 | Non-text elements, placeholder text |
| Black text on #6ECC91 | 10.70:1 | AAA | Lc 66.3 | Content text, not long reading |
| #6ECC91 text on white | 1.96:1 | Fails | Lc 37.6 | Non-text elements, placeholder text |
| #6ECC91 text on black | 10.70:1 | AAA | Lc -64.8 | 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
#D8F1DF
oklch(93.5% 0.036 154.3)
-
Step 200
200
#B6E7C5
oklch(88.5% 0.069 154.5)
-
Step 300
300 (this color)
#6ECC91
oklch(77.1% 0.124 154.7)
-
Step 400
400
#00BF6D
oklch(70.7% 0.176 154.8)
-
Step 500
500
#00A45C
oklch(63.1% 0.158 154.5)
-
Step 600
600
#008A4D
oklch(55.6% 0.138 154.7)
-
Step 700
700
#007440
oklch(49.1% 0.122 154.8)
-
Step 800
800
#005F33
oklch(42.6% 0.106 154.6)
-
Step 900
900
#004F2A
oklch(37.6% 0.093 154.9)
-
Step 950
950
#003017
oklch(27.1% 0.068 154.6)
#6ECC91 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) | #CCBF8D | 0.112 |
| Deuteranopia (no green cones) | #BEB595 | 0.109 |
| Tritanopia (no blue cones) | #59CABC | 0.062 |
| Achromatopsia (no color) | #B9B9B9 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6ECC91
#6ECC91
oklch(77.1% 0.124 154.7)
- #E596D5
#E596D5
oklch(77.2% 0.124 334.3)
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 #6ECC91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.033
- Soft Green #6FC276 ΔE 0.037
- Emerald #06D6A0 ΔE 0.046
- Seafoam Blue #78D1B6 ΔE 0.051
- Dark Sea Green #8FBC8F ΔE 0.052
- Pale Teal #82CBB2 ΔE 0.053
- Greenblue #23C48B ΔE 0.054
- Dark Mint #48C072 ΔE 0.060
Use #6ECC91 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.