#91C661
Closest named color: Light Olive Green (#A4BE5C). oklch(76.7% 0.143 131.8), rgb(145, 198, 97).
Aa
Black text reads best on this color (10.45:1).
About this color
#91C661 is a medium-light, vivid green. In OKLCH its lightness is 77%, its chroma 0.143 and its hue 132°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Olive Green (#A4BE5C), ΔE 0.029 away. Black text reads best on it, at 10.45:1.
| Hue family | Greens |
| Lightness | medium-light (77%) |
| Chroma | vivid (0.143) |
| Temperature | in between |
| Nearest name | Light Olive Green (#A4BE5C) |
| Black text | 10.45:1 |
| White text | 2.00:1 |
Values
| HEX | #91C661 |
| RGB | rgb(145, 198, 97) |
| HSL | hsl(91, 47%, 58%) |
| OKLCH | oklch(76.7% 0.143 131.8) |
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 #91C661 | 2.00:1 | Fails | Lc -43.3 | Non-text elements, placeholder text |
| Black text on #91C661 | 10.45:1 | AAA | Lc 65.1 | Content text, not long reading |
| #91C661 text on white | 2.00:1 | Fails | Lc 38.8 | Non-text elements, placeholder text |
| #91C661 text on black | 10.45:1 | 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
#F1F8EB
oklch(97% 0.019 130.2)
-
Step 100
100
#E0F0D4
oklch(93.6% 0.041 131.7)
-
Step 200
200
#C6E5AE
oklch(88.5% 0.08 131.8)
-
Step 300
300 (this color)
#91C661
oklch(76.7% 0.143 131.8)
-
Step 400
400
#70B800
oklch(70.7% 0.196 132)
-
Step 500
500
#609E00
oklch(63.2% 0.175 131.8)
-
Step 600
600
#508400
oklch(55.5% 0.153 131.6)
-
Step 700
700
#426F00
oklch(49% 0.136 131.8)
-
Step 800
800
#355B00
oklch(42.6% 0.118 131.9)
-
Step 900
900
#2C4C00
oklch(37.7% 0.104 131.6)
-
Step 950
950
#182D00
oklch(26.9% 0.074 131.6)
#91C661 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) | #CDBA58 | 0.081 |
| Deuteranopia (no green cones) | #C6B567 | 0.083 |
| Tritanopia (no blue cones) | #93BFAF | 0.108 |
| Achromatopsia (no color) | #B7B7B7 | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91C661
#91C661
oklch(76.7% 0.143 131.8)
- #D297F5
#D297F5
oklch(76.7% 0.144 312.1)
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 #91C661, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Olive Green #A4BE5C ΔE 0.029
- Light Moss Green #A6C875 ΔE 0.037
- Light Olive #ACBF69 ΔE 0.041
- Soft Green #6FC276 ΔE 0.043
- Tan Green #A9BE70 ΔE 0.044
- Pea #A4BF20 ΔE 0.044
- Yellow Green #9ACD32 ΔE 0.047
- Bright Olive #9CBB04 ΔE 0.052
Use #91C661 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.