#91D259
Closest named color: Yellow Green (#9ACD32). oklch(79.5% 0.167 132.7), rgb(145, 210, 89).
Aa
Black text reads best on this color (11.56:1).
About this color
#91D259 is a light, vivid green. In OKLCH its lightness is 79%, its chroma 0.167 and its hue 133°. 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 11.56:1.
| Hue family | Greens |
| Lightness | light (79%) |
| Chroma | vivid (0.167) |
| Temperature | in between |
| Nearest name | Yellow Green (#9ACD32) |
| Black text | 11.56:1 |
| White text | 1.81:1 |
Values
| HEX | #91D259 |
| RGB | rgb(145, 210, 89) |
| HSL | hsl(92, 57%, 59%) |
| OKLCH | oklch(79.5% 0.167 132.7) |
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 #91D259 | 1.81:1 | Fails | Lc -37.8 | Non-text elements, placeholder text |
| Black text on #91D259 | 11.56:1 | AAA | Lc 70.2 | Content text, not long reading |
| #91D259 text on white | 1.81:1 | Fails | Lc 33.7 | Non-text elements, placeholder text |
| #91D259 text on black | 11.56:1 | AAA | Lc -68.9 | 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
#DEF1D0
oklch(93.5% 0.048 131.9)
-
Step 200
200
#C2E7A7
oklch(88.6% 0.093 132.5)
-
Step 300
300 (this color)
#91D259
oklch(79.5% 0.167 132.7)
-
Step 400
400
#6DB900
oklch(70.8% 0.199 132.7)
-
Step 500
500
#5D9E00
oklch(63.1% 0.177 132.5)
-
Step 600
600
#4D8500
oklch(55.6% 0.156 132.7)
-
Step 700
700
#407000
oklch(49.1% 0.138 132.7)
-
Step 800
800
#335C00
oklch(42.8% 0.12 132.9)
-
Step 900
900
#2A4C00
oklch(37.6% 0.105 132.5)
-
Step 950
950
#172E00
oklch(27.1% 0.076 132.8)
#91D259 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) | #DAC44C | 0.096 |
| Deuteranopia (no green cones) | #D1BE62 | 0.098 |
| Tritanopia (no blue cones) | #92CAB8 | 0.125 |
| Achromatopsia (no color) | #C0C0C0 | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91D259
#91D259
oklch(79.5% 0.167 132.7)
- #DC9FFF
#DC9FFF
oklch(79.5% 0.146 312.5)
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 #91D259, 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 0.043
- Apple #6ECB3C ΔE 0.050
- Apple Green #76CD26 ΔE 0.051
- Pea #A4BF20 ΔE 0.053
- Light Moss Green #A6C875 ΔE 0.054
- Pale Olive Green #B1D27B ΔE 0.057
Use #91D259 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.