#1CB11B
Closest named color: Kelly Green (#02AB2E). oklch(66.2% 0.215 142.6), rgb(28, 177, 27).
Aa
Black text reads best on this color (7.35:1).
About this color
#1CB11B is a medium-light, vivid green. In OKLCH its lightness is 66%, its chroma 0.215 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 0.023 away. Black text reads best on it, at 7.35:1.
| Hue family | Greens |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.215) |
| Temperature | in between |
| Nearest name | Kelly Green (#02AB2E) |
| Black text | 7.35:1 |
| White text | 2.85:1 |
Values
| HEX | #1CB11B |
| RGB | rgb(28, 177, 27) |
| HSL | hsl(120, 74%, 40%) |
| OKLCH | oklch(66.2% 0.215 142.6) |
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 #1CB11B | 2.85:1 | Fails | Lc -59.3 | Large or bold text, headings |
| Black text on #1CB11B | 7.35:1 | AAA | Lc 50.0 | Large or bold text, headings |
| #1CB11B text on white | 2.85:1 | Fails | Lc 54.0 | Large or bold text, headings |
| #1CB11B text on black | 7.35:1 | AAA | Lc -47.8 | 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 500.
-
Step 50
50
#F0F8EF
oklch(97.1% 0.015 142.2)
-
Step 100
100
#DFEFDD
oklch(93.5% 0.029 142.2)
-
Step 200
200
#C4E4C0
oklch(88.6% 0.059 142)
-
Step 300
300
#99D294
oklch(80.9% 0.104 142.6)
-
Step 400
400
#59BA54
oklch(70.7% 0.168 142.7)
-
Step 500
500 (this color)
#1CB11B
oklch(66.2% 0.215 142.6)
-
Step 600
600
#008C03
oklch(55.5% 0.188 142.6)
-
Step 700
700
#007602
oklch(49% 0.166 142.6)
-
Step 800
800
#006101
oklch(42.7% 0.145 142.6)
-
Step 900
900
#005101
oklch(37.7% 0.128 142.6)
-
Step 950
950
#023002
oklch(26.9% 0.088 142.6)
#1CB11B 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) | #B59F00 | 0.152 |
| Deuteranopia (no green cones) | #A69530 | 0.151 |
| Tritanopia (no blue cones) | #00AC97 | 0.139 |
| Achromatopsia (no color) | #999999 | 0.216 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1CB11B
#1CB11B
oklch(66.2% 0.215 142.6)
- #CE5ADE
#CE5ADE
oklch(66.3% 0.215 322.7)
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 #1CB11B, closest first.
No curated palette has a color within ΔE 0.04 of #1CB11B.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Kelly Green #02AB2E ΔE 0.023
- Shamrock #01B44C ΔE 0.033
- Leaf Green #5CA904 ΔE 0.039
- Medium Green #39AD48 ΔE 0.041
- Leafy Green #51B73B ΔE 0.042
- Grass #5CAC2D ΔE 0.043
- Frog Green #58BC08 ΔE 0.050
- Shamrock Green #02C14D ΔE 0.050
Use #1CB11B 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.