#91CA58
Closest named color: Yellow Green (#9ACD32). oklch(77.5% 0.157 131.4), rgb(145, 202, 88).
Aa
Black text reads best on this color (10.79:1).
About this color
#91CA58 is a medium-light, vivid green. In OKLCH its lightness is 78%, its chroma 0.157 and its hue 131°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Yellow Green (#9ACD32), ΔE 0.031 away. Black text reads best on it, at 10.79:1.
| Hue family | Greens |
| Lightness | medium-light (78%) |
| Chroma | vivid (0.157) |
| Temperature | in between |
| Nearest name | Yellow Green (#9ACD32) |
| Black text | 10.79:1 |
| White text | 1.94:1 |
Values
| HEX | #91CA58 |
| RGB | rgb(145, 202, 88) |
| HSL | hsl(90, 52%, 57%) |
| OKLCH | oklch(77.5% 0.157 131.4) |
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 #91CA58 | 1.94:1 | Fails | Lc -41.6 | Non-text elements, placeholder text |
| Black text on #91CA58 | 10.79:1 | AAA | Lc 66.7 | Content text, not long reading |
| #91CA58 text on white | 1.94:1 | Fails | Lc 37.2 | Non-text elements, placeholder text |
| #91CA58 text on black | 10.79:1 | AAA | Lc -65.2 | 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
#DFF1D1
oklch(93.6% 0.046 131.4)
-
Step 200
200
#C5E6A9
oklch(88.6% 0.088 131.1)
-
Step 300
300 (this color)
#91CA58
oklch(77.5% 0.157 131.4)
-
Step 400
400
#72B700
oklch(70.6% 0.194 131.4)
-
Step 500
500
#619D00
oklch(63% 0.173 131.4)
-
Step 600
600
#518400
oklch(55.5% 0.153 131.4)
-
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
#192D00
oklch(27% 0.074 130.9)
#91CA58 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) | #D2BD4C | 0.087 |
| Deuteranopia (no green cones) | #CAB860 | 0.089 |
| Tritanopia (no blue cones) | #93C2B1 | 0.120 |
| Achromatopsia (no color) | #BABABA | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91CA58
#91CA58
oklch(77.5% 0.157 131.4)
- #D697FF
#D697FF
oklch(77.6% 0.157 311)
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 #91CA58, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Yellow Green #9ACD32 ΔE 0.031
- Light Olive Green #A4BE5C ΔE 0.040
- Pea #A4BF20 ΔE 0.040
- Slime Green #99CC04 ΔE 0.044
- Light Moss Green #A6C875 ΔE 0.045
- Apple #6ECB3C ΔE 0.048
- Bright Olive #9CBB04 ΔE 0.049
- Light Olive #ACBF69 ΔE 0.052
Use #91CA58 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.