#91CE55
Closest named color: Yellow Green (#9ACD32). oklch(78.5% 0.165 131.7), rgb(145, 206, 85).
Aa
Black text reads best on this color (11.16:1).
About this color
#91CE55 is a light, vivid green. In OKLCH its lightness is 78%, its chroma 0.165 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 0.024 away. Black text reads best on it, at 11.16:1.
| Hue family | Greens |
| Lightness | light (78%) |
| Chroma | vivid (0.165) |
| Temperature | in between |
| Nearest name | Yellow Green (#9ACD32) |
| Black text | 11.16:1 |
| White text | 1.88:1 |
Values
| HEX | #91CE55 |
| RGB | rgb(145, 206, 85) |
| HSL | hsl(90, 55%, 57%) |
| OKLCH | oklch(78.5% 0.165 131.7) |
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 #91CE55 | 1.88:1 | Fails | Lc -39.7 | Non-text elements, placeholder text |
| Black text on #91CE55 | 11.16:1 | AAA | Lc 68.4 | Content text, not long reading |
| #91CE55 text on white | 1.88:1 | Fails | Lc 35.5 | Non-text elements, placeholder text |
| #91CE55 text on black | 11.16:1 | AAA | Lc -67.0 | 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
#C3E6A7
oklch(88.4% 0.091 131.7)
-
Step 300
300 (this color)
#91CE55
oklch(78.5% 0.165 131.7)
-
Step 400
400
#71B800
oklch(70.8% 0.196 131.8)
-
Step 500
500
#609D00
oklch(63% 0.174 131.7)
-
Step 600
600
#508400
oklch(55.5% 0.153 131.6)
-
Step 700
700
#436F00
oklch(49% 0.135 131.5)
-
Step 800
800
#365B00
oklch(42.7% 0.117 131.5)
-
Step 900
900
#2C4C00
oklch(37.7% 0.104 131.6)
-
Step 950
950
#182D00
oklch(26.9% 0.074 131.6)
#91CE55 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) | #D6C048 | 0.092 |
| Deuteranopia (no green cones) | #CEBB5E | 0.094 |
| Tritanopia (no blue cones) | #93C6B4 | 0.125 |
| Achromatopsia (no color) | #BDBDBD | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91CE55
#91CE55
oklch(78.5% 0.165 131.7)
- #D99BFF
#D99BFF
oklch(78.5% 0.151 311.8)
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 #91CE55, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Yellow Green #9ACD32 ΔE 0.024
- Slime Green #99CC04 ΔE 0.037
- Pea #A4BF20 ΔE 0.044
- Apple #6ECB3C ΔE 0.046
- Fresh Green #69D84F ΔE 0.046
- Apple Green #76CD26 ΔE 0.048
- Light Olive Green #A4BE5C ΔE 0.051
- Light Moss Green #A6C875 ΔE 0.051
Use #91CE55 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.