#91B307
Closest named color: Icky Green (#8FAE22). oklch(71.6% 0.173 122.3), rgb(145, 179, 7).
Aa
Black text reads best on this color (8.65:1).
About this color
#91B307 is a medium-light, vivid yellow. In OKLCH its lightness is 72%, its chroma 0.173 and its hue 122°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Icky Green (#8FAE22), ΔE 0.018 away. Black text reads best on it, at 8.65:1.
| Hue family | Yellows |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.173) |
| Temperature | in between |
| Nearest name | Icky Green (#8FAE22) |
| Black text | 8.65:1 |
| White text | 2.42:1 |
Values
| HEX | #91B307 |
| RGB | rgb(145, 179, 7) |
| HSL | hsl(72, 92%, 36%) |
| OKLCH | oklch(71.6% 0.173 122.3) |
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 #91B307 | 2.42:1 | Fails | Lc -52.5 | Large or bold text, headings |
| Black text on #91B307 | 8.65:1 | AAA | Lc 56.4 | Large or bold text, headings |
| #91B307 text on white | 2.42:1 | Fails | Lc 47.5 | Large or bold text, headings |
| #91B307 text on black | 8.65:1 | AAA | Lc -54.5 | 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
#E6EED7
oklch(93.7% 0.032 122.7)
-
Step 200
200
#D2E0B4
oklch(88.5% 0.06 122)
-
Step 300
300
#B4CC7C
oklch(80.9% 0.108 122.4)
-
Step 400
400 (this color)
#91B307
oklch(71.6% 0.173 122.3)
-
Step 500
500
#7A9700
oklch(63.1% 0.154 122.2)
-
Step 600
600
#667F00
oklch(55.6% 0.135 122.3)
-
Step 700
700
#556B00
oklch(49.2% 0.12 122.6)
-
Step 800
800
#455700
oklch(42.6% 0.104 122.4)
-
Step 900
900
#394900
oklch(37.8% 0.092 122.7)
-
Step 950
950
#212B00
oklch(27% 0.066 122.2)
#91B307 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) | #BEA700 | 0.069 |
| Deuteranopia (no green cones) | #BAA625 | 0.069 |
| Tritanopia (no blue cones) | #99A998 | 0.145 |
| Achromatopsia (no color) | #A6A6A6 | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91B307
#91B307
oklch(71.6% 0.173 122.3)
- #B985FC
#B985FC
oklch(71.6% 0.173 302.4)
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 #91B307, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Icky Green #8FAE22 ΔE 0.018
- Dark Lime #84B701 ΔE 0.019
- Avocado #90B134 ΔE 0.020
- Pea Green #8EAB12 ΔE 0.023
- Bright Olive #9CBB04 ΔE 0.027
- Mustard Green #A8B504 ΔE 0.032
- Avocado Green #87A922 ΔE 0.034
- Dark Lime Green #7EBD01 ΔE 0.034
Use #91B307 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.