#91AC1B
Closest named color: Icky Green (#8FAE22). oklch(70% 0.16 120.6), rgb(145, 172, 27).
Aa
Black text reads best on this color (8.12:1).
About this color
#91AC1B is a medium-light, vivid yellow. In OKLCH its lightness is 70%, its chroma 0.160 and its hue 121°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Icky Green (#8FAE22), ΔE 0.005 away. Black text reads best on it, at 8.12:1.
| Hue family | Yellows |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.160) |
| Temperature | in between |
| Nearest name | Icky Green (#8FAE22) |
| Black text | 8.12:1 |
| White text | 2.58:1 |
Values
| HEX | #91AC1B |
| RGB | rgb(145, 172, 27) |
| HSL | hsl(71, 73%, 39%) |
| OKLCH | oklch(70% 0.16 120.6) |
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 #91AC1B | 2.58:1 | Fails | Lc -55.5 | Large or bold text, headings |
| Black text on #91AC1B | 8.12:1 | AAA | Lc 53.6 | Large or bold text, headings |
| #91AC1B text on white | 2.58:1 | Fails | Lc 50.4 | Large or bold text, headings |
| #91AC1B text on black | 8.12:1 | AAA | Lc -51.6 | Large or bold text, headings |
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
#F4F7ED
oklch(97.1% 0.014 120.3)
-
Step 100
100
#E7EDD8
oklch(93.6% 0.029 119.9)
-
Step 200
200
#D4DFB7
oklch(88.5% 0.055 120)
-
Step 300
300
#B7CB80
oklch(80.9% 0.101 120.9)
-
Step 400
400 (this color)
#91AC1B
oklch(70% 0.16 120.6)
-
Step 500
500
#7D9600
oklch(63.1% 0.151 120.8)
-
Step 600
600
#697E00
oklch(55.6% 0.133 120.6)
-
Step 700
700
#586A00
oklch(49.2% 0.117 120.6)
-
Step 800
800
#485700
oklch(42.9% 0.102 120.5)
-
Step 900
900
#3B4800
oklch(37.7% 0.09 120.7)
-
Step 950
950
#222B00
oklch(27.1% 0.065 121.1)
#91AC1B 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) | #B7A100 | 0.058 |
| Deuteranopia (no green cones) | #B4A12C | 0.060 |
| Tritanopia (no blue cones) | #9AA293 | 0.137 |
| Achromatopsia (no color) | #A1A1A1 | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91AC1B
#91AC1B
oklch(70% 0.16 120.6)
- #AF84F1
#AF84F1
oklch(69.9% 0.159 300.5)
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 #91AC1B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Icky Green #8FAE22 ΔE 0.005
- Pea Green #8EAB12 ΔE 0.006
- Avocado #90B134 ΔE 0.016
- Pea Soup Green #94A617 ΔE 0.016
- Avocado Green #87A922 ΔE 0.016
- Dark Lime #84B701 ΔE 0.036
- Leaf #71AA34 ΔE 0.040
- Mustard Green #A8B504 ΔE 0.042
Use #91AC1B 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.