#23B243
Closest named color: Shamrock (#01B44C). oklch(66.9% 0.191 146.2), rgb(35, 178, 67).
Aa
Black text reads best on this color (7.52:1).
About this color
#23B243 is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.191 and its hue 146°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Shamrock (#01B44C), ΔE 0.009 away. Black text reads best on it, at 7.52:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.191) |
| Temperature | in between |
| Nearest name | Shamrock (#01B44C) |
| Black text | 7.52:1 |
| White text | 2.79:1 |
Values
| HEX | #23B243 |
| RGB | rgb(35, 178, 67) |
| HSL | hsl(133, 67%, 42%) |
| OKLCH | oklch(66.9% 0.191 146.2) |
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 #23B243 | 2.79:1 | Fails | Lc -58.4 | Large or bold text, headings |
| Black text on #23B243 | 7.52:1 | AAA | Lc 50.8 | Large or bold text, headings |
| #23B243 text on white | 2.79:1 | Fails | Lc 53.2 | Large or bold text, headings |
| #23B243 text on black | 7.52:1 | AAA | Lc -48.7 | 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 500.
-
Step 50
50
#F0F8F1
oklch(97.1% 0.013 149.3)
-
Step 100
100
#DFEFDF
oklch(93.6% 0.027 145.4)
-
Step 200
200
#C4E3C5
oklch(88.5% 0.052 146)
-
Step 300
300
#99D19D
oklch(80.8% 0.093 146.5)
-
Step 400
400
#5AB965
oklch(70.7% 0.15 146.1)
-
Step 500
500 (this color)
#23B243
oklch(66.9% 0.191 146.2)
-
Step 600
600
#008C2C
oklch(55.7% 0.169 146.1)
-
Step 700
700
#007624
oklch(49.2% 0.15 146.2)
-
Step 800
800
#00601C
oklch(42.6% 0.129 146.3)
-
Step 900
900
#005116
oklch(37.9% 0.115 146.2)
-
Step 950
950
#02300B
oklch(27% 0.079 146.2)
#23B243 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) | #B5A137 | 0.147 |
| Deuteranopia (no green cones) | #A5964D | 0.146 |
| Tritanopia (no blue cones) | #00AE9A | 0.114 |
| Achromatopsia (no color) | #9B9B9B | 0.192 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23B243
#23B243
oklch(66.9% 0.191 146.2)
- #CE63D2
#CE63D2
oklch(66.8% 0.191 326.1)
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 #23B243, closest first.
No curated palette has a color within ΔE 0.04 of #23B243.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Shamrock #01B44C ΔE 0.009
- Medium Green #39AD48 ΔE 0.019
- Kelly Green #02AB2E ΔE 0.027
- Leafy Green #51B73B ΔE 0.031
- Grass #5CAC2D ΔE 0.034
- Cool Green #33B864 ΔE 0.038
- Mid Green #50A747 ΔE 0.039
- Leaf Green #5CA904 ΔE 0.041
Use #23B243 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.