#91B028
Closest named color: Icky Green (#8FAE22). oklch(71% 0.159 122.1), rgb(145, 176, 40).
Aa
Black text reads best on this color (8.44:1).
About this color
#91B028 is a medium-light, vivid yellow. In OKLCH its lightness is 71%, its chroma 0.159 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 0.007 away. Black text reads best on it, at 8.44:1.
| Hue family | Yellows |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.159) |
| Temperature | in between |
| Nearest name | Icky Green (#8FAE22) |
| Black text | 8.44:1 |
| White text | 2.48:1 |
Values
| HEX | #91B028 |
| RGB | rgb(145, 176, 40) |
| HSL | hsl(74, 63%, 42%) |
| OKLCH | oklch(71% 0.159 122.1) |
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 #91B028 | 2.48:1 | Fails | Lc -53.7 | Large or bold text, headings |
| Black text on #91B028 | 8.44:1 | AAA | Lc 55.3 | Large or bold text, headings |
| #91B028 text on white | 2.48:1 | Fails | Lc 48.7 | Large or bold text, headings |
| #91B028 text on black | 8.44:1 | AAA | Lc -53.3 | 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
#E6EDD8
oklch(93.5% 0.029 122)
-
Step 200
200
#D3E0B8
oklch(88.6% 0.055 122.2)
-
Step 300
300
#B5CB82
oklch(80.8% 0.099 122.3)
-
Step 400
400 (this color)
#91B028
oklch(71% 0.159 122.1)
-
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
#566A00
oklch(49% 0.118 121.7)
-
Step 800
800
#465700
oklch(42.7% 0.103 121.8)
-
Step 900
900
#3A4900
oklch(37.9% 0.092 122)
-
Step 950
950
#212B00
oklch(27% 0.066 122.2)
#91B028 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) | #BBA501 | 0.061 |
| Deuteranopia (no green cones) | #B7A435 | 0.064 |
| Tritanopia (no blue cones) | #99A797 | 0.133 |
| Achromatopsia (no color) | #A4A4A4 | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91B028
#91B028
oklch(71% 0.159 122.1)
- #B487F3
#B487F3
oklch(71% 0.158 301.7)
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 #91B028, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Icky Green #8FAE22 ΔE 0.007
- Avocado #90B134 ΔE 0.007
- Pea Green #8EAB12 ΔE 0.016
- Avocado Green #87A922 ΔE 0.024
- Pea Soup Green #94A617 ΔE 0.026
- Dark Lime #84B701 ΔE 0.031
- Mustard Green #A8B504 ΔE 0.036
- Turtle Green #75B84F ΔE 0.037
Use #91B028 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.