#91CF59
Closest named color: Yellow Green (#9ACD32). oklch(78.7% 0.163 132.3), rgb(145, 207, 89).
Aa
Black text reads best on this color (11.27:1).
About this color
#91CF59 is a light, vivid green. In OKLCH its lightness is 79%, its chroma 0.163 and its hue 132°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Yellow Green (#9ACD32), ΔE 0.027 away. Black text reads best on it, at 11.27:1.
| Hue family | Greens |
| Lightness | light (79%) |
| Chroma | vivid (0.163) |
| Temperature | in between |
| Nearest name | Yellow Green (#9ACD32) |
| Black text | 11.27:1 |
| White text | 1.86:1 |
Values
| HEX | #91CF59 |
| RGB | rgb(145, 207, 89) |
| HSL | hsl(92, 55%, 58%) |
| OKLCH | oklch(78.7% 0.163 132.3) |
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 #91CF59 | 1.86:1 | Fails | Lc -39.2 | Non-text elements, placeholder text |
| Black text on #91CF59 | 11.27:1 | AAA | Lc 68.9 | Content text, not long reading |
| #91CF59 text on white | 1.86:1 | Fails | Lc 35.0 | Non-text elements, placeholder text |
| #91CF59 text on black | 11.27:1 | 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
#F0F9EA
oklch(97.1% 0.022 132.5)
-
Step 100
100
#DEF1D1
oklch(93.6% 0.047 132.5)
-
Step 200
200
#C3E6A8
oklch(88.4% 0.09 132)
-
Step 300
300 (this color)
#91CF59
oklch(78.7% 0.163 132.3)
-
Step 400
400
#6FB800
oklch(70.7% 0.197 132.2)
-
Step 500
500
#5E9E00
oklch(63.1% 0.176 132.3)
-
Step 600
600
#4E8500
oklch(55.6% 0.155 132.4)
-
Step 700
700
#417000
oklch(49.2% 0.137 132.3)
-
Step 800
800
#345C00
oklch(42.8% 0.12 132.5)
-
Step 900
900
#2B4C00
oklch(37.6% 0.105 132.1)
-
Step 950
950
#172D00
oklch(26.8% 0.075 132.3)
#91CF59 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) | #D7C14D | 0.093 |
| Deuteranopia (no green cones) | #CEBC61 | 0.094 |
| Tritanopia (no blue cones) | #93C7B5 | 0.123 |
| Achromatopsia (no color) | #BEBEBE | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91CF59
#91CF59
oklch(78.7% 0.163 132.3)
- #DA9CFF
#DA9CFF
oklch(78.8% 0.15 312.1)
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 #91CF59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Yellow Green #9ACD32 ΔE 0.027
- Slime Green #99CC04 ΔE 0.040
- Fresh Green #69D84F ΔE 0.047
- Pea #A4BF20 ΔE 0.048
- Apple #6ECB3C ΔE 0.048
- Light Moss Green #A6C875 ΔE 0.049
- Apple Green #76CD26 ΔE 0.050
- Light Olive Green #A4BE5C ΔE 0.051
Use #91CF59 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.