#91B820
Closest named color: Bright Olive (#9CBB04). oklch(72.8% 0.172 124), rgb(145, 184, 32).
Aa
Black text reads best on this color (9.08:1).
About this color
#91B820 is a medium-light, vivid yellow. In OKLCH its lightness is 73%, its chroma 0.172 and its hue 124°. 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 9.08:1.
| Hue family | Yellows |
| Lightness | medium-light (73%) |
| Chroma | vivid (0.172) |
| Temperature | in between |
| Nearest name | Bright Olive (#9CBB04) |
| Black text | 9.08:1 |
| White text | 2.31:1 |
Values
| HEX | #91B820 |
| RGB | rgb(145, 184, 32) |
| HSL | hsl(75, 70%, 42%) |
| OKLCH | oklch(72.8% 0.172 124) |
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 #91B820 | 2.31:1 | Fails | Lc -50.3 | Large or bold text, headings |
| Black text on #91B820 | 9.08:1 | AAA | Lc 58.6 | Large or bold text, headings |
| #91B820 text on white | 2.31:1 | Fails | Lc 45.4 | Large or bold text, headings |
| #91B820 text on black | 9.08:1 | AAA | Lc -56.7 | 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
#F3F7ED
oklch(97% 0.014 124.6)
-
Step 100
100
#E5EED7
oklch(93.6% 0.032 124.5)
-
Step 200
200
#D1E0B5
oklch(88.4% 0.059 123.2)
-
Step 300
300
#B2CD7E
oklch(81% 0.108 124.1)
-
Step 400
400 (this color)
#91B820
oklch(72.8% 0.172 124)
-
Step 500
500
#769800
oklch(63.1% 0.157 124)
-
Step 600
600
#638000
oklch(55.7% 0.138 124)
-
Step 700
700
#526B00
oklch(49% 0.122 124.1)
-
Step 800
800
#435800
oklch(42.7% 0.106 124.1)
-
Step 900
900
#374900
oklch(37.6% 0.094 124.1)
-
Step 950
950
#202B00
oklch(26.9% 0.066 123.3)
#91B820 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) | #C3AC00 | 0.072 |
| Deuteranopia (no green cones) | #BEAA31 | 0.074 |
| Tritanopia (no blue cones) | #98AF9D | 0.141 |
| Achromatopsia (no color) | #AAAAAA | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91B820
#91B820
oklch(72.8% 0.172 124)
- #BF88FE
#BF88FE
oklch(72.8% 0.173 303.9)
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 #91B820, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bright Olive #9CBB04 ΔE 0.018
- Dark Lime #84B701 ΔE 0.020
- Avocado #90B134 ΔE 0.025
- Icky Green #8FAE22 ΔE 0.028
- Dark Lime Green #7EBD01 ΔE 0.029
- Mustard Green #A8B504 ΔE 0.029
- Pea #A4BF20 ΔE 0.033
- Pea Green #8EAB12 ΔE 0.036
Use #91B820 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.