#6DCF91
Closest named color: Medium Aquamarine (#66CDAA). oklch(77.8% 0.129 154.3), rgb(109, 207, 145).
Aa
Black text reads best on this color (10.98:1).
About this color
#6DCF91 is a medium-light, moderately saturated green. In OKLCH its lightness is 78%, its chroma 0.129 and its hue 154°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.036 away. Black text reads best on it, at 10.98:1.
| Hue family | Greens |
| Lightness | medium-light (78%) |
| Chroma | moderately saturated (0.129) |
| Temperature | in between |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 10.98:1 |
| White text | 1.91:1 |
Values
| HEX | #6DCF91 |
| RGB | rgb(109, 207, 145) |
| HSL | hsl(142, 51%, 62%) |
| OKLCH | oklch(77.8% 0.129 154.3) |
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 #6DCF91 | 1.91:1 | Fails | Lc -40.6 | Non-text elements, placeholder text |
| Black text on #6DCF91 | 10.98:1 | AAA | Lc 67.6 | Content text, not long reading |
| #6DCF91 text on white | 1.91:1 | Fails | Lc 36.3 | Non-text elements, placeholder text |
| #6DCF91 text on black | 10.98:1 | AAA | Lc -66.2 | 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
#EDF9F0
oklch(97.1% 0.017 153.6)
-
Step 100
100
#D7F2DF
oklch(93.6% 0.038 154.9)
-
Step 200
200
#B5E8C4
oklch(88.6% 0.072 154)
-
Step 300
300 (this color)
#6DCF91
oklch(77.8% 0.129 154.3)
-
Step 400
400
#00BF6C
oklch(70.6% 0.176 154.5)
-
Step 500
500
#00A45B
oklch(63.1% 0.158 154.2)
-
Step 600
600
#008A4C
oklch(55.6% 0.139 154.3)
-
Step 700
700
#00743F
oklch(49.1% 0.123 154.3)
-
Step 800
800
#005F33
oklch(42.6% 0.106 154.6)
-
Step 900
900
#005029
oklch(37.8% 0.096 153.9)
-
Step 950
950
#003016
oklch(27.1% 0.069 153.7)
#6DCF91 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) | #CFC18D | 0.116 |
| Deuteranopia (no green cones) | #C0B795 | 0.113 |
| Tritanopia (no blue cones) | #56CDBF | 0.065 |
| Achromatopsia (no color) | #BBBBBB | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6DCF91
#6DCF91
oklch(77.8% 0.129 154.3)
- #E996D8
#E996D8
oklch(77.7% 0.13 334.5)
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 #6DCF91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.036
- Soft Green #6FC276 ΔE 0.041
- Emerald #06D6A0 ΔE 0.043
- Seafoam Blue #78D1B6 ΔE 0.052
- Pale Teal #82CBB2 ΔE 0.056
- Seaweed #18D17B ΔE 0.057
- Greenblue #23C48B ΔE 0.058
- Dark Sea Green #8FBC8F ΔE 0.059
Use #6DCF91 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.