#91B233
Closest named color: Avocado (#90B134). oklch(71.5% 0.155 123.1), rgb(145, 178, 51).
Aa
Black text reads best on this color (8.61:1).
About this color
#91B233 is a medium-light, vivid yellow. In OKLCH its lightness is 72%, its chroma 0.155 and its hue 123°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Avocado (#90B134), ΔE 0.003 away. Black text reads best on it, at 8.61:1.
| Hue family | Yellows |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.155) |
| Temperature | in between |
| Nearest name | Avocado (#90B134) |
| Black text | 8.61:1 |
| White text | 2.43:1 |
Values
| HEX | #91B233 |
| RGB | rgb(145, 178, 51) |
| HSL | hsl(76, 55%, 45%) |
| OKLCH | oklch(71.5% 0.155 123.1) |
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 #91B233 | 2.43:1 | Fails | Lc -52.8 | Large or bold text, headings |
| Black text on #91B233 | 8.61:1 | AAA | Lc 56.2 | Large or bold text, headings |
| #91B233 text on white | 2.43:1 | Fails | Lc 47.8 | Large or bold text, headings |
| #91B233 text on black | 8.61:1 | AAA | Lc -54.2 | 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
#F4F7EE
oklch(97.1% 0.012 121.7)
-
Step 100
100
#E6EDD9
oklch(93.5% 0.028 122.7)
-
Step 200
200
#D2E0B9
oklch(88.6% 0.054 123.6)
-
Step 300
300
#B5CB85
oklch(80.9% 0.096 122.7)
-
Step 400
400 (this color)
#91B233
oklch(71.5% 0.155 123.1)
-
Step 500
500
#789700
oklch(63% 0.154 123)
-
Step 600
600
#647F00
oklch(55.5% 0.136 123.2)
-
Step 700
700
#546B00
oklch(49.1% 0.121 123.1)
-
Step 800
800
#445800
oklch(42.8% 0.106 123.5)
-
Step 900
900
#384900
oklch(37.7% 0.093 123.4)
-
Step 950
950
#202B00
oklch(26.9% 0.066 123.3)
#91B233 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) | #BCA71D | 0.062 |
| Deuteranopia (no green cones) | #B8A63E | 0.065 |
| Tritanopia (no blue cones) | #98A999 | 0.128 |
| Achromatopsia (no color) | #A6A6A6 | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91B233
#91B233
oklch(71.5% 0.155 123.1)
- #B789F2
#B789F2
oklch(71.6% 0.154 302.9)
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 #91B233, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Avocado #90B134 ΔE 0.003
- Icky Green #8FAE22 ΔE 0.013
- Pea Green #8EAB12 ΔE 0.023
- Avocado Green #87A922 ΔE 0.030
- Pea Soup Green #94A617 ΔE 0.032
- Dark Lime #84B701 ΔE 0.032
- Turtle Green #75B84F ΔE 0.034
- Mustard Green #A8B504 ΔE 0.034
Use #91B233 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.