#11B523
Closest named color: Kelly Green (#02AB2E). oklch(67.2% 0.217 143.5), rgb(17, 181, 35).
Aa
Black text reads best on this color (7.65:1).
About this color
#11B523 is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.217 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Kelly Green (#02AB2E), ΔE 0.032 away. Black text reads best on it, at 7.65:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.217) |
| Temperature | in between |
| Nearest name | Kelly Green (#02AB2E) |
| Black text | 7.65:1 |
| White text | 2.74:1 |
Values
| HEX | #11B523 |
| RGB | rgb(17, 181, 35) |
| HSL | hsl(127, 83%, 39%) |
| OKLCH | oklch(67.2% 0.217 143.5) |
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 #11B523 | 2.74:1 | Fails | Lc -57.5 | Large or bold text, headings |
| Black text on #11B523 | 7.65:1 | AAA | Lc 51.7 | Large or bold text, headings |
| #11B523 text on white | 2.74:1 | Fails | Lc 52.3 | Large or bold text, headings |
| #11B523 text on black | 7.65:1 | AAA | Lc -49.6 | 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
#EFF9EE
oklch(97.2% 0.018 142.8)
-
Step 100
100
#DBF1DA
oklch(93.6% 0.038 144.1)
-
Step 200
200
#BCE7BA
oklch(88.6% 0.076 143.8)
-
Step 300
300
#89D786
oklch(80.9% 0.136 143.4)
-
Step 400
400 (this color)
#11B523
oklch(67.2% 0.217 143.5)
-
Step 500
500
#00A71A
oklch(63.2% 0.208 143.5)
-
Step 600
600
#008C14
oklch(55.5% 0.183 143.5)
-
Step 700
700
#00760F
oklch(49.1% 0.162 143.5)
-
Step 800
800
#00610A
oklch(42.7% 0.141 143.4)
-
Step 900
900
#005107
oklch(37.7% 0.124 143.4)
-
Step 950
950
#003103
oklch(27.2% 0.089 143.6)
#11B523 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) | #B9A300 | 0.156 |
| Deuteranopia (no green cones) | #A99835 | 0.156 |
| Tritanopia (no blue cones) | #00B09A | 0.138 |
| Achromatopsia (no color) | #9C9C9C | 0.218 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #11B523
#11B523
oklch(67.2% 0.217 143.5)
- #D35CE0
#D35CE0
oklch(67.3% 0.216 323.6)
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 #11B523, closest first.
No curated palette has a color within ΔE 0.04 of #11B523.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Kelly Green #02AB2E ΔE 0.032
- Shamrock #01B44C ΔE 0.032
- Leafy Green #51B73B ΔE 0.038
- Shamrock Green #02C14D ΔE 0.041
- Frog Green #58BC08 ΔE 0.043
- Medium Green #39AD48 ΔE 0.044
- Leaf Green #5CA904 ΔE 0.045
- Grass #5CAC2D ΔE 0.046
Use #11B523 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.