#91C031
Closest named color: Bright Olive (#9CBB04). oklch(74.8% 0.173 126.5), rgb(145, 192, 49).
Aa
Black text reads best on this color (9.78:1).
About this color
#91C031 is a medium-light, vivid green. In OKLCH its lightness is 75%, its chroma 0.173 and its hue 126°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bright Olive (#9CBB04), ΔE 0.018 away. Black text reads best on it, at 9.78:1.
| Hue family | Greens |
| Lightness | medium-light (75%) |
| Chroma | vivid (0.173) |
| Temperature | in between |
| Nearest name | Bright Olive (#9CBB04) |
| Black text | 9.78:1 |
| White text | 2.14:1 |
Values
| HEX | #91C031 |
| RGB | rgb(145, 192, 49) |
| HSL | hsl(80, 59%, 47%) |
| OKLCH | oklch(74.8% 0.173 126.5) |
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 #91C031 | 2.14:1 | Fails | Lc -46.6 | Large or bold text, headings |
| Black text on #91C031 | 9.78:1 | AAA | Lc 62.0 | Content text, not long reading |
| #91C031 text on white | 2.14:1 | Fails | Lc 41.9 | Non-text elements, placeholder text |
| #91C031 text on black | 9.78:1 | AAA | Lc -60.3 | 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 400.
-
Step 50
50
#F3F7ED
oklch(97% 0.014 124.6)
-
Step 100
100
#E4EED8
oklch(93.6% 0.031 127)
-
Step 200
200
#CFE1B6
oklch(88.5% 0.061 126.1)
-
Step 300
300
#AECE80
oklch(80.9% 0.109 126.8)
-
Step 400
400 (this color)
#91C031
oklch(74.8% 0.173 126.5)
-
Step 500
500
#709A00
oklch(63.2% 0.162 126.5)
-
Step 600
600
#5E8100
oklch(55.6% 0.142 126.3)
-
Step 700
700
#4E6D00
oklch(49.2% 0.126 126.7)
-
Step 800
800
#3F5900
oklch(42.7% 0.11 126.7)
-
Step 900
900
#344A00
oklch(37.7% 0.097 126.5)
-
Step 950
950
#1E2C00
oklch(27% 0.069 126.1)
#91C031 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) | #CAB312 | 0.079 |
| Deuteranopia (no green cones) | #C4B03F | 0.083 |
| Tritanopia (no blue cones) | #97B7A5 | 0.139 |
| Achromatopsia (no color) | #B1B1B1 | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91C031
#91C031
oklch(74.8% 0.173 126.5)
- #C88EFF
#C88EFF
oklch(74.7% 0.167 306.5)
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 #91C031, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bright Olive #9CBB04 ΔE 0.018
- Pea #A4BF20 ΔE 0.023
- Dark Lime Green #7EBD01 ΔE 0.031
- Dark Lime #84B701 ΔE 0.034
- Mustard Green #A8B504 ΔE 0.037
- Yellow Green #9ACD32 ΔE 0.038
- Slime Green #99CC04 ΔE 0.040
- Apple #6ECB3C ΔE 0.042
Use #91C031 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.