#91C578
Closest named color: Light Moss Green (#A6C875). oklch(76.8% 0.118 136), rgb(145, 197, 120).
Aa
Black text reads best on this color (10.46:1).
About this color
#91C578 is a medium-light, moderately saturated green. In OKLCH its lightness is 77%, its chroma 0.118 and its hue 136°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Moss Green (#A6C875), ΔE 0.027 away. Black text reads best on it, at 10.46:1.
| Hue family | Greens |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.118) |
| Temperature | in between |
| Nearest name | Light Moss Green (#A6C875) |
| Black text | 10.46:1 |
| White text | 2.00:1 |
Values
| HEX | #91C578 |
| RGB | rgb(145, 197, 120) |
| HSL | hsl(101, 40%, 62%) |
| OKLCH | oklch(76.8% 0.118 136) |
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 #91C578 | 2.00:1 | Fails | Lc -43.3 | Non-text elements, placeholder text |
| Black text on #91C578 | 10.46:1 | AAA | Lc 65.1 | Content text, not long reading |
| #91C578 text on white | 2.00:1 | Fails | Lc 38.8 | Non-text elements, placeholder text |
| #91C578 text on black | 10.46:1 | AAA | Lc -63.5 | 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
#F1F8EE
oklch(97.1% 0.015 136.1)
-
Step 100
100
#E0F0D9
oklch(93.7% 0.035 136)
-
Step 200
200
#C6E4B9
oklch(88.6% 0.066 136.2)
-
Step 300
300 (this color)
#91C578
oklch(76.8% 0.118 136)
-
Step 400
400
#65B92E
oklch(70.6% 0.188 135.9)
-
Step 500
500
#4EA100
oklch(63.1% 0.188 136)
-
Step 600
600
#408700
oklch(55.5% 0.165 136)
-
Step 700
700
#357200
oklch(49.1% 0.146 136)
-
Step 800
800
#2A5D00
oklch(42.6% 0.127 136)
-
Step 900
900
#224E00
oklch(37.7% 0.112 136.1)
-
Step 950
950
#122F00
oklch(27.2% 0.081 136)
#91C578 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) | #CABA72 | 0.076 |
| Deuteranopia (no green cones) | #C2B57C | 0.076 |
| Tritanopia (no blue cones) | #90C0B2 | 0.083 |
| Achromatopsia (no color) | #B7B7B7 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91C578
#91C578
oklch(76.8% 0.118 136)
- #D19CE7
#D19CE7
oklch(76.8% 0.119 315.7)
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 #91C578, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Moss Green #A6C875 ΔE 0.027
- Tan Green #A9BE70 ΔE 0.031
- Light Olive Green #A4BE5C ΔE 0.033
- Light Olive #ACBF69 ΔE 0.034
- Soft Green #6FC276 ΔE 0.038
- Lichen #8FB67B ΔE 0.044
- Dark Sea Green #8FBC8F ΔE 0.045
- Sage Green #88B378 ΔE 0.053
Use #91C578 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.